LINKSYS E2500 Linksys E2500 Advanced Dual-Band N Router User Manual Linksys E3000 User Guide

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User Manual

Linksys E2500 Advanced Dual-Band N RouterUser Guide
Linksys E2500 Table of ContentsiAdvanced Dual-Band N RouterContentsChapter 1: Advanced Configuration  13How to Access the Browser-Based Utility.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .13Setup > Basic Setup .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .13Setup > DDNS.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .17Setup > MAC Address Clone.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .18Setup > Advanced Routing  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .18Wireless > Basic Wireless Settings  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .19Wireless > Wireless Security .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .22Wireless > Wireless MAC Filter.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .24Wireless > Advanced Wireless Settings .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .25Security > Firewall .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .26Security > VPN Passthrough .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .27Access Restrictions > Internet Access Policy.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .33Applications and Gaming > Single Port Forwarding.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .34Applications and Gaming > Port Range Forwarding   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .35Applications & Gaming > Port Range Triggering .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .35Applications and Gaming > DMZ   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .36Applications and Gaming > QoS .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .36Administration > Management.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .39Administration > Log  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .40Administration > Diagnostics .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .40Administration > Factory Defaults .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .41Administration > Firmware Upgrade  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .41Status > Router .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .42Status > Local Network .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .42Status > Wireless Network .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .43Appendix A: Troubleshooting  44Appendix B: Specifications  58
Linksys E2500 Table of ContentsiiAdvanced Dual-Band N Router
1Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationChapter 1: Advanced ConfigurationAfter  setting  up  the  Router  with  the  setup  software (located on the CD-ROM), the Router will be ready for use. If you would like to change its advanced settings, use the Router’s browser-based utility. This chapter describes each web page of the utility and each page’s key functions. You can  access the  utility  via  a  web  browser on a computer connected to the Router.The  browser-based  utility  has  these  main  tabs:  Setup, Wireless, Security, Storage, Access Restrictions, Applications & Gaming, Administration, and Status. Additional tabs will be available after you click one of the main tabs.How to Access the Browser-Based UtilityTo  access  the  browser-based  utility,  launch  the  web browser on your computer, and enter the Router’s default IP  address,  192.168.1.1  in  the  Address  field. Then  press Enter.NOTE: You  can  also  access the browser-based utility on Windows computers by entering the device name in the Address field. Refer to Device Name under “Router Address” on page 4.A login screen will appear. (Non-Windows 7 users will see a similar screen.) In the User name field, enter admin. Then enter  the  password  created  during  the  setup  software. (If  you  did  not  run  the  setup  software,  then  use  the default  password,  admin.  You  can  set  a  new  password on  the  Administration  >  Management  screen.  Refer  to “Administration > Management” on page 21.) Click OK to continue.Windows 7 Login ScreenNOTE: You  can  also  access  the  browser-based utility through the Cisco Connect software. For more information, refer to “Router Settings” on page 10.Setup > Basic SetupThe first screen that appears is the Basic Setup screen. This allows you to change the Router’s general settings. Setup > Basic SetupLanguageSelect your language To use a different language, select one  from  the  drop-down  menu.  The  language  of  the browser-based  utility  will  change  five  seconds  after  you select another language.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Internet SetupThe Internet Setup section  configures the  Router to your Internet  connection.  Most  of  this  information  can  be obtained through your Internet Service Provider (ISP).Internet Connection TypeSelect the type of Internet connection your ISP provides from the drop-down menu. The available types are: • Automatic Configuration - DHCP • Static IP • PPPoE • PPTP • L2TP • Telstra Cable
2Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationAutomatic Configuration - DHCPThe default Internet Connection Type is set to Automatic Configuration - DHCP. Keep the default only if your ISP supports DHCP (Dynamic Host Configuration Protocol) or if you connect using  a dynamic  IP Address. (This option usually applies to cable connections.)Internet Connection Type > Automatic Configuration - DHCPStatic IPIf  you  are  required  to  use  a  permanent  IP  address  to connect to the Internet, select Static IP.Internet Connection Type > Static IPIP  Address  This  is  the  Router’s  IP  address,  when  seen from  the  Internet. Your  ISP  will  provide  you  with  the  IP address you need to enter here.Subnet Mask  This is the  Router’s  Subnet  Mask, as seen by users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask.Default  Gateway  Your  ISP  will  provide  you  with  the Gateway address, which is the ISP server’s IP address.DNS  Your  ISP  will  provide  you  with  at  least  one  DNS (Domain Name System) server IP address.PPPoESome DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable PPPoE.Internet Connection Type > PPPoEUser  Name  and  Password  Enter  the  User  Name  and Password provided by your ISP.Service Name  (optional)  If  provided  by  your  ISP, enter the Service Name.Connect on Demand: Max Idle Time  You can configure the  Router  to  cut  the  Internet  connection  after  it  has been  inactive  for  a  specified  period  of  time  (Max  Idle Time).  If  your  Internet  connection  has  been  terminated due to inactivity, Connect on Demand enables the Router to  automatically  re-establish  your  connection  as  soon as  you attempt  to  access the  Internet  again. To  use  this option, select Connect on Demand. In the Max Idle Time field,  enter  the  number  of  minutes  you  want  to  elapse before your Internet connection terminates. The default is 5 minutes.Keep Alive: Redial Period  If you select  this  option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish  your  connection.  To  use  this  option,  select Keep Alive. In  the  Redial  Period  field, specify  how  often the  Router  should  check  the  Internet  connection.  The default is 30 seconds.PPTPPoint-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only.Internet Connection Type > PPTPIf your ISP supports DHCP or you are connecting through a dynamic IP address, then select Obtain an IP Address Automatically. If you are required to use a permanent IP address to connect to the Internet, then select Specify an IP Address. Then configure the following:Internet  IP  Address  This  is  the  Router’s  IP  address,  as seen from the Internet. Your ISP will provide you with the IP Address you need to specify here.Subnet Mask  This is the  Router’s  Subnet  Mask, as seen by users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask.Default  Gateway  Your  ISP  will  provide  you  with  the Gateway address, which is the ISP server’s IP address.DNS  Your  ISP  will  provide  you  with  at  least  one  DNS (Domain Name System) Server IP address.
3Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationServer  IP  Address  Your  ISP  will  provide  you  with  the Server IP Address.User  Name  and  Password  Enter  the  User  Name  and Password provided by your ISP.Connect on Demand: Max Idle Time  You can configure the  Router  to  cut  the  Internet  connection  after  it  has been  inactive  for  a  specified  period  of  time  (Max  Idle Time).  If  your  Internet  connection  has  been  terminated due to inactivity, Connect on Demand enables the Router to  automatically  re-establish  your  connection  as  soon as  you attempt  to  access the  Internet  again. To  use  this option, select Connect on Demand. In the Max Idle Time field,  enter  the  number  of  minutes  you  want  to  elapse before your Internet connection terminates. The default is 5 minutes.Keep Alive: Redial Period  If you select  this  option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish  your  connection.  To  use  this  option,  select Keep Alive. In  the  Redial  Period  field, specify  how  often the  Router  should  check  the  Internet  connection.  The default is 30 seconds.L2TPLayer 2 Tunneling Protocol (L2TP) is a service that applies to connections in Israel only.Internet Connection Type > L2TPServer  IP  Address  This  is  the  IP  address  of  the  L2TP Server. Your ISP will provide you with the IP Address you need to specify here.User  Name  and  Password  Enter  the  User  Name  and Password provided by your ISP.Connect on Demand: Max Idle Time  You can configure the  Router  to  cut  the  Internet  connection  after  it  has been  inactive  for  a  specified  period  of  time  (Max  Idle Time).  If  your  Internet  connection  has  been  terminated due to inactivity, Connect on Demand enables the Router to  automatically  re-establish  your  connection  as  soon as  you attempt  to  access the  Internet  again. To  use  this option, select Connect on Demand. In the Max Idle Time field,  enter  the  number  of  minutes  you  want  to  elapse before your Internet connection terminates. The default is 5 minutes.Keep Alive: Redial Period  If you select  this  option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish  your  connection.  To  use  this  option,  select Keep Alive. In  the  Redial  Period  field, specify  how  often the  Router  should  check  the  Internet  connection.  The default is 30 seconds.Telstra CableTelstra  Cable  is  a  service  that  applies  to  connections  in Australia only.Internet Connection Type > Telstra CableServer  IP  Address  This  is  the  IP  address  of  the Telstra Cable. Your ISP will provide you with the IP Address you need to specify here.User  Name  and  Password  Enter  the  User  Name  and Password provided by your ISP.Optional SettingsSome of these settings may be required by your ISP. Verify with your ISP before making any changes.Optional SettingsHost  Name/Domain  Name  These  fields  allow  you  to supply a host and domain name for the Router. Some ISPs, usually cable ISPs, require these  names as identification. You  may  have  to  check  with  your  ISP  to  see  if  your broadband  Internet  service  has  been  configured  with  a host and domain name. In most cases, leaving these fields blank will work. MTU  MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. Select Manual if you want to manually enter the largest packet size that is transmitted. To have the Router select the  best  MTU  for  your  Internet  connection,  keep  the default setting, Auto.
4Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationSize  When Manual is selected in the MTU field, this option is enabled. Leave this value in the 1200 to 1500 range. The default size depends on the Internet Connection Type: • DHCP, Static IP, or Telstra: 1500 • PPPoE: 1492 • PPTP or L2TP: 1460Network SetupThe Network Setup section configures the  IP  settings  for your local network.Router AddressThis  presents  the  Router’s  IP  Address,  the  Subnet  Mask, and the Device Name as seen by your network. Router IP AddressIP Address  This is the IP address of the router and is used as the base for all of your local network settings.Subnet  Mask  This  is  the  subnet  mask  address  for  your router. It offers a selection of addresses from a drop-down menu. Most users will not need to change this setting.Device  Name  The  default  device  name  is  Ciscoxxxxx. xxxxx  represents the  last 5  digits of  your  serial  number. This can be found on the bottom of the router. (The Device name is also the Router’s NetBIOS name.)NOTE:  If  you  used  the  setup  software for  installation,  then  the  device  name  is synchronized  with  the  name  of  your  wireless network (up to 15 characters).DHCP Server SettingsThe  settings  allow  you  to  configure  the  Router’s  DHCP server function. The Router can be used as a DHCP server for your network. A DHCP server automatically assigns an IP address to each computer or device on your network.NOTE: If you choose to enable the DHCP server option, make sure there is no other DHCP server on your network. DHCP Server SettingDHCP Server  DHCP is enabled by factory default. If you already have a DHCP server on your network, or  you do not want a DHCP server, then select Disabled (no other DHCP features will be available).DHCP Reservation  Click DHCP Reservation if you want to assign  a fixed local  IP  address to  a specific  device on your network. This is helpful if you have a device you need to access at the same address all the time such as a media server or  print server. You can reserve the  IP  address for the specific device by selecting it from the list of devices or by manually entering the MAC address of the device. DHCP ReservationYou will  see a  list  of DHCP  clients with the  following information:  Client  Name,  Interface,  IP  Address,  and MAC Address. DHCP Reservation • Select  Clients  from  DHCP  Table  Click  the  Select check  box  to  reserve  a  client’s  IP  address. Then  click Add Clients.  • Manually  Add  Client  To  manually  assign  an  IP address,  enter  the  client’s  name  in  the  Enter  Client Name  field.  Enter the  IP  address you  want it  to  have in the Assign IP Address field. Enter its MAC address in the To This MAC Address field. Then click Add and click Save Settings.Clients Already ReservedA list of DHCP clients and their fixed local IP addresses are displayed at the bottom of the screen. If you want to remove a client from this list, click Remove.Click  Save  Settings  to  apply  your  changes,  or  click Cancel  Changes  to  clear  your  changes.  To  update the  on-screen information,  click  Refresh. To  exit  this screen, click Close.Start  IP  Address  The  Start  IP  Address  specifies  the starting  IP  address  for  the  range  of  addresses  assigned by your Router when it functions as a DHCP server. (The first IP address assigned by  the  Router will  be  randomly selected within the range you specify.)Because  the  Router’s  default  IP  address  is  192.168.1.1, the  Start  IP  Address must  be  192.168.1.2  or  greater,  but
5Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced Configurationsmaller than 192.168.1.254. The default Start IP Address is 192.168.1.100.Maximum  Number  of  Users  Enter  the  maximum number of computers that you want the DHCP server to assign  IP  addresses  to.  This  number  cannot  be  greater than 253. The default is 50.IP Address Range  The range of available IP addresses is displayed.Client Lease Time  The Client Lease Time is the amount of time a network user will be allowed connection to the Router  with  their  current  dynamic  IP  address.  Enter  the amount of time, in minutes, that the user will be “leased” this dynamic IP address. After the time is up, the user will be automatically assigned a new dynamic  IP  address, or the lease will be renewed. The default is 0 minutes, which means one day.Static DNS (1-3) The Domain Name System (DNS) is how the  Internet  translates  domain  or  website  names  into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use another, enter that IP Address in one of these fields. You can enter up to three DNS Server IP Addresses here. The Router will use these for quicker access to functioning DNS servers.WINS  The  Windows  Internet  Naming  Service  (WINS) manages each computer’s interaction with the Internet. If you use a WINS server, enter that server’s IP address here. Otherwise, leave this blank.Time SettingsTime SettingTime Zone  Select the time zone in which your network functions from this drop-down menu.Automatically  adjust  clock  for  daylight  saving changes  Select  this  option  to  have  the  Router automatically adjust for daylight saving time.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.RebootRebootReboot  Use this option to reboot your Router.Setup > DDNSThe  Router  offers  a  Dynamic  Domain  Name  System (DDNS)  feature.  DDNS  lets  you  assign  a  fixed  host  and domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP (File Transfer Protocol) server, or other server behind the Router. Before  you  can  use  this  feature,  you  need  to  sign up  for  DDNS  service  with  a  DDNS  service  provider,  www.dyndns.org or www.tzo.com. If you do not want to use this feature, keep the default, Disabled.DDNSDDNS ServiceIf  your  DDNS  service  is  provided  by  DynDNS.org,  then select  DynDNS.org  from  the  drop-down  menu.  If  your DDNS  service  is  provided  by TZO,  then  select  TZO.com. The  features  available  on  the  DDNS  screen  will  vary, depending on which DDNS service provider you use.  DynDNS.orgSetup > DDNS > DynDNSUsername  Enter the Username for your DDNS account.Password  Enter the Password for your DDNS account.Host Name  The DDNS URL assigned by the DDNS service is displayed.System  Select  the  DynDNS  service  you  use:  Dynamic, Static, or Custom. The default selection is Dynamic.Mail Exchange (Optional)  Enter the address of your mail exchange server, so e-mails to your DynDNS address go to your mail server.Backup MX  This feature allows the Mail eXchange (MX) server  to  be  a  backup. To  disable  this  feature,  keep  the default, Disabled. To enable the feature, select Enabled. If you are not sure which setting to select, keep the default, Disabled.
6Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationWildcard  This  setting  enables  or  disables  wildcards for  your  host.  For  example,  if  your  DDNS  address  is myplace.dyndns.org  and  you  enable  wildcards,  then x.myplace.dyndns.org will work as well (x is the wildcard). To  disable  wildcards,  keep  the  default,  Disabled.  To enable  wildcards,  select  Enabled.  If  you  are  not  sure which setting to select, keep the default, Disabled.Internet  IP  Address  The  Router’s  Internet  IP  address  is displayed here. Because it is dynamic, it will change.Status  The  status  of  the  DDNS  service  connection  is displayed.Update   To manually trigger an update, click Update.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.TZO.comSetup > DDNS > TZOE-mail  Address,  TZO  Password,  and  Domain Name  Enter the settings of the account you set up with TZO.Internet  IP  Address  The  Router’s  Internet  IP  address  is displayed here. Because it is dynamic, it will change.Status  The  status  of  the  DDNS  service  connection  is displayed.Update   To manually trigger an update, click Update.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Setup > MAC Address CloneA  MAC  address  is  a  12-digit  code  assigned  to  a  unique piece of hardware for identification. Some ISPs require you to register a MAC address in order to access the Internet. If you do not wish to re-register the MAC address with your ISP, you can use the MAC Address Clone feature to assign the currently registered MAC address to the Router.Setup > MAC Address CloneMAC Address CloneEnabled/Disabled  To  have  the  MAC  address  cloned, select Enabled.MAC  Address  Enter  the  MAC  address  registered  with your ISP here.Clone My PC’s MAC  Click this button to clone the MAC address of the computer you are using.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Setup > Advanced RoutingThis  screen  is  used  to  set  up  the  Router’s  advanced functions.  Operating  Mode  allows  you  to  select  the type(s) of advanced functions you use. Dynamic Routing automatically adjusts how packets travel on your network. Static  Routing  sets  up  a  fixed  route  to  another  network destination.Setup > Advanced RoutingAdvanced RoutingNATEnabled/Disabled  If this Router is hosting your network’s connection to the Internet, keep the default, Enabled. If another  router  exists  on  your  network,  select  Disabled. When the NAT setting is disabled, dynamic routing will be available.
7Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationDynamic Routing (RIP)Dynamic  routing  uses  the  Routing  Information  Protocol (RIP).  This  option  enables  the  Router  to  automatically adjust  to  physical  changes  in  the  network’s  layout  and exchange routing tables with other router(s). The Router determines  the  network  packets’  route  based  on  the fewest  number  of  hops  between  the  source  and  the destination.Enabled/Disabled  When the NAT setting is enabled, the Dynamic Routing option is automatically disabled. When the NAT setting is disabled, this option is available. Select Enabled to use the Dynamic Routing option.Static RoutingA static route is a pre-determined pathway that network information  must  travel  to  reach  a  specific  host  or network. Enter the information described below to set up a new static route.Route Entries  To set up a static route between the Router and  another  network,  select  a  number  from  the  drop-down list. Click Delete This Entry to delete a static route.Enter  Route  Name  Enter  a  name  for  the  Route  here, using a maximum of 25 alphanumeric characters.Destination LAN IP  The Destination LAN IP is the address of the remote network or host to which you want to assign a static route.Subnet  Mask  The  Subnet  Mask  determines  which portion  of  a  Destination  LAN  IP  address  is  the  network portion, and which portion is the host portion. Gateway  This is the IP address of the gateway device that allows  for  contact  between  the  Router  and  the  remote network or host.Interface  This interface tells you whether the Destination IP Address is on the LAN & Wireless (Ethernet and wireless networks) or the Internet (WAN).Click Show Routing Table  to view  the static  routes you have already set up.Routing TableRouting TableFor each route, the Destination LAN IP address, Subnet Mask,  Gateway,  and  Interface  are  displayed.  Click Refresh to update the information. Click Close to exit this screen.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Wireless > Basic Wireless SettingsThe basic settings for wireless networking are set on this screen.There  are  two  ways  to  configure  the  Router’s  wireless network(s), manual and Wi-Fi Protected Setup.Wi-Fi Protected Setup is a feature that makes it easy to set up your wireless network. If you have client devices, such as wireless adapters, that support Wi-Fi Protected Setup, then you can use Wi-Fi Protected Setup.Simultaneous NetworksFor more wireless bandwidth, the Router can create two simultaneous yet separate Wireless-N networks, one using the Wireless-N 5 GHz band and one using the Wireless-N 2.4  GHz  band.  You  can  use  Wi-Fi  Protected  Setup  to easily  configure and  connect  to  both  networks (refer to “Wi-Fi Protected Setup” on page 9), or you can manually configure the Router. If you use manual configuration, then set up each network with the following: • Unique Network Name (SSID) • Wireless  security  settings  (refer  to “5 GHz or 2.4 GHz Wireless Security” on page 10)Decide  which  computers  and  other  wireless  devices should  join  which  network.  Wireless-N  devices  support both the 5 GHz and 2.4 GHz bands, so they can join either the 5 GHz or 2.4 GHz network. Wireless-G and Wireless-B devices  support  only  the  2.4  GHz  band,  so  they  should join the 2.4 GHz network. Wireless-A devices support only the 5 GHz band, so they should join the 5 GHz network.For the 5 GHz network, configure all computers and other wireless  devices  with  the  same  5  GHz  Network  Name (SSID)  and  wireless  security  settings.  For  the  2.4  GHz network,  configure  all  computers  and  other  wireless devices with the same 2.4 GHz Network Name (SSID) and wireless security settings. NOTE: Make sure each network uses a unique Network Name (SSID).
8Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationWireless > Basic Wireless SettingsConfiguration  View  To  manually  configure  your wireless networks, select Manual. Proceed to the Wireless Configuration  (Manual)  section.  To  use  Wi-Fi  Protected Setup,  select  Wi-Fi  Protected  Setup.  Proceed  to “Wi-Fi Protected Setup” on page 9.Wireless Configuration (Manual)Your  Linksys  E2500  can  run  two  networks  at  the  same time, one network using the 5 GHz radio frequency band and the other network using the 2.4 GHz radio frequency band. This allows you to isolate higher-priority traffic, such as  video  and voice  applications,  on  the  5  GHz  network, which is less prone to interference.The computers and devices running your video and voice applications can use the 5 GHz network, while your guest access and computers that are only browsing the web can use the 2.4 GHz network.1212Family NotebookPrinterModemRouterGaming ConsoleBlu-ray PlayerInternet  5 GHz Wireless Network (Local Devices Only)  2.4 GHz Wireless Network (Local or Guest Devices)If  you  set  the  Configuration  View  to  Manual,  the  Basic Wireless Settings screen displays the following fields.5 GHz Wireless SettingsNetwork Mode  Select the wireless standards running on your 5 GHz network.  • Mixed  If  you  have  both  Wireless-A  and  Wireless-N (5  GHz)  devices  in  your  network,  keep  the  default, Mixed.  • Wireless-A Only  If you have only Wireless-A devices, select Wireless-A Only.  • Wireless-N Only  If you have only Wireless-N (5 GHz) devices, select Wireless-N Only.  • Disabled  If  you  do  not  have  any  Wireless-A  and Wireless-N  (5GHz)  devices  in  your  network,  select Disabled. Network  Name  (SSID)  The  Service  Set  Identifier  (SSID) is  the  network  name  shared by  all devices  in a  wireless network.  It  is  case-sensitive  and  must  not  exceed  32 keyboard characters. The default is Ciscoxxxxx (xxxxx are the last five digits of the Router’s serial number, found on the product label on the left side of the Router’s bottom panel).  The  setup  software  that  you  use  to  install  your Router  and  set  up  your  wireless  network  changes  the default Network Name to an easy-to-remember name.NOTE: If you restore the Router’s factory default settings (by pressing the Reset button or using the  Administration  >  Factory  Defaults  screen), the  Network  Name  will  return  to  its  default value, and all devices on your wireless network will need to be reconnected..Channel  Width  For  best  performance  in  a  network using Wireless-A and Wireless-N (5 GHz) devices, keep the default,  Auto  (20MHz  or  40MHz).  For  a  channel  width of 40 MHz, select 40MHz only. For a channel width of 20 MHz, select 20MHz only.  Channel  Select the channel from the drop-down list for Wireless-A  and Wireless-N (5GHz)  networking.  If  you are not sure which channel to select, keep the default, Auto.SSID  Broadcast  When  wireless  clients  survey  the  local area  for  wireless  networks  to  associate  with,  they  will detect the SSID broadcast by the Router. To broadcast the Router’s  SSID,  keep  the  default,  Enabled.  If  you  do  not want to broadcast the Router’s SSID, then select Disabled.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.2.4 GHz Wireless SettingsNetwork Mode  Select the wireless standards running on your 2.4 GHz network.  • Mixed  If  you  have  both  Wireless-B,  Wireless-G  and Wireless-N (2.4 GHz) devices in your network, keep the default, Mixed.
9Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced Configuration • Wireless-B/G  Only  If  you  have  both  Wireless-B  and Wireless-G  (2.4  GHz)  devices  in  your  network,  select Wireless-B/G Only.   • Wireless-B Only  If you have only Wireless-B devices, select Wireless-B Only.  • Wireless-G Only  If you have only Wireless-G devices, select Wireless-G Only.  • Wireless-N Only  If you have only Wireless-N (2.4 GHz) devices, select Wireless-N Only.  • Disabled  If you do not have any Wireless-B, Wireless-G and  Wireless-N  (2.4  GHz)  devices  in  your  network, select Disabled.Network  Name  (SSID)  The  Service  Set  Identifier  (SSID) is  the  network  name  shared by  all devices  in a  wireless network.  It  is  case-sensitive  and  must  not  exceed  32 keyboard characters. The default is Ciscoxxxxx (xxxxx are the last five digits of the Router’s serial number, found on the product label on the left side of the Router’s bottom panel).  The  setup  software  that  you  use  to  install  your Router  and  set  up  your  wireless  network  changes  the default Network Name to an easy-to-remember name.NOTE: If you restore the Router’s factory default settings (by pressing the Reset button or using the  Administration  >  Factory  Defaults  screen), the  Network  Name  will  return  to  its  default value, and all devices on your wireless network will need to be reconnected..Channel Width  For best performance in a network using Wireless-B,  Wireless-G  and  Wireless-N  (2.4  GHz)  devices, select Auto (20MHz or 40MHz). For a channel width of 20 MHz, keep the default, 20MHz only.Channel  Select  the  channel  from  the  drop-down  list for  Wireless-B,  Wireless-G,  and  Wireless-N  (2.4  GHz) networking. If  you are not sure which channel  to select, keep the default, Auto.SSID  Broadcast  When  wireless  clients  survey  the  local area  for  wireless  networks  to  associate  with,  they  will detect the SSID broadcast by the Router. To broadcast the Router’s  SSID,  keep  the  default,  Enabled.  If  you  do  not want to broadcast the Router’s SSID, then select Disabled.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Wi-Fi Protected SetupThere are three methods available. Use the method that applies to the client device you are configuring.Wireless > Basic Wireless Settings (Wi-Fi Protected Setup)NOTE:  Wi-Fi  Protected  Setup  configures  one client device at a time. Repeat the instructions for  each  client  device  that  supports  Wi-Fi Protected Setup.1.  Use  the  Wi-Fi  Protected  Setup  Button  Use  this method  if  your  client  device  has  a  Wi-Fi  Protected Setup button.a.  Click or press the Wi-Fi Protected Setup button on the client device.b.  Click  the  Wi-Fi  Protected  Setup  button  on  the Router’s Wi-Fi Protected Setup screen.The Wi-Fi Protected Setup LED  flashes blue for two minutes during the Wi-Fi Protected Setup process and lights up blue when the Wi-Fi Protected Setup process is successful.  The LED lights up amber if there is an error during the Wi-Fi  Protected  Setup process. Make  sure the client device supports Wi-Fi Protected Setup. Wait until the LED is off, and then try again. The  LED  flashes  when  a  Wi-Fi  Protected  Setup session is active. The Router supports one session at a time. Wait until the LED is solidly lit, or off before starting the next Wi-Fi Protected Setup session.c.  After  the  client  device  has  been  configured, click  OK  on  the Router’s  Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.2.  Enter  the  client  device’s  PIN  on  the  Router  Use this method if your client device has a Wi-Fi Protected Setup PIN number.a.  Enter the PIN number from the client device in the field on the Router’s Wi-Fi Protected Setup screen.
10Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationSecurity ModeSelect  the  security  method  for each  wireless  network.  If you do not want to use wireless security, select Disabled.NOTE: If you are not  using WPA2/WPA Mixed-Mode  then  each  device  in  your  wireless network  MUST  use  the  same  security  mode and  passphrase,  or  else  the  network  will  not function properly.WPA2/WPA Mixed ModeNOTE: If you select WPA2/WPA Mixed Mode as your Security Mode, each device in your wireless network MUST use the same passphrase.WPA2/WPA Mixed ModePassphrase  Enter  a  passphrase  of  8-63  characters.  The default  is  password.  The  setup  software  that  you  use to  install  your  Router  and  set  up  your  wireless  network changes the default passphrase.WPA2 PersonalNOTE:  If  you  select  WPA2  Personal  as  your Security  Mode,  each  device  in  your  wireless network  MUST  use  WPA2  Personal  and  the same passphrase.WPA2 Personalb.  Click  the  Register  button  on  the  Router’s  Wi-Fi Protected Setup screen.c.  After  the  client  device  has  been  configured, click  OK  on  the  Router’s  Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.3.  Enter  the  Router’s  PIN  on  your  client  device  Use this method if your client device asks for the Router’s PIN number. a.  On the client device, enter the PIN number listed on the Router’s Wi-Fi Protected Setup screen. (It is also listed on the label on the bottom of the Router.)b.  After  the  client  device  has  been  configured, click  OK  on  the Router’s  Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.The  Network  Name  (SSID),  Security,  and  Passphrase  are displayed at the bottom of the screen.NOTE:  If  you  have  client  devices  that  do  not support Wi-Fi Protected Setup, note the wireless settings,  and  then  manually  configure  those client devices.Wireless > Wireless SecurityThe  wireless  security  settings  configure  the  security of  your  wireless  network(s).  The  Router  supports  the following  wireless  security  options:  WPA/WPA2  Mixed Mode  (default),  WPA2  Personal, WPA  Personal, WEP,  and RADIUS.  (WPA  stands  for  Wi-Fi  Protected  Access.  WEP stands for Wireless Equivalent Privacy. RADIUS stands for Remote Authentication Dial-In User Service.)Personal OptionsSecurity Option StrengthWPA2 Personal StrongestWPA2/WPA Mixed Mode WPA2: Strongest WPA: StrongWPA Personal StrongWEP BasicOffice OptionRADIUS  is  the  security  option  offered  for  networks  that use a RADIUS server for authentication.5 GHz or 2.4 GHz Wireless SecurityWireless security is strongly recommended, and WPA2 is the strongest method available. Use WPA2 if it is supported by all of your wireless devices.
11Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationPassphrase  Enter  a  passphrase  of  8-63  characters.  The default  is  password.  The  setup  software  that  you  use to  install  your  Router  and  set  up  your  wireless  network changes the default passphrase.WPA PersonalNOTE:  If  you  select  WPA  Personal  as  your Security  Mode,  each  device  in  your  wireless network MUST use WPA Personal and the same passphrase. WPA PersonalPassphrase  Enter  a  passphrase  of  8-63  characters.  The default  is  password.  The  setup  software  that  you  use to  install  your  Router  and  set  up  your  wireless  network changes the default passphrase.WEPWEP is a basic encryption method, which is not as secure as WPA. IMPORTANT: If you select WEP as your Security Mode,  each  device  in  your  wireless  network MUST  use  WEP  and  the  same  encryption  and shared key.WEPEncryption  Select  a  level  of  WEP  encryption,  64 bits 10  hex  digits  or  128  bits 26  hex digits.  The  default  is 64 bits 10 hex digits.Passphrase  Enter a Passphrase to automatically generate WEP keys. Then click Generate.Key 1-4  If you did not enter a Passphrase, enter the WEP key(s) manually.TX Key  Select a default TX (Transmit) Key (choose which Key to use). The default is 1.
12Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationRADIUSThis  option  features  WEP  used  in  coordination  with  a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) IMPORTANT:  If  you  select  RADIUS  as  your Security  Mode,  each  device  in  your  wireless network  MUST  use  RADIUS  and  the  same WEP encryption and shared key.RADIUSRADIUS Server  Enter the IP address of the RADIUS server.RADIUS  Port    Enter  the  port  number  of  the  RADIUS server. The default is 1812.Shared  Key  Enter  the  key  shared  between  the  Router and the server.Encryption  Select  a  level  of  WEP  encryption,  64 bits 10  hex  digits  or  128  bits 26  hex digits.  The  default  is 64 bits 10 hex digits.Passphrase  Enter a Passphrase to automatically generate WEP keys. Then click Generate.Key 1-4  If you did not enter a Passphrase, enter the WEP key(s) manually.TX Key  Select a default TX (Transmit) Key (choose which Key to use). The default is 1.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Wireless > Wireless MAC FilterWireless  access  can  be  filtered  (restricted)  by  specifying the MAC addresses of the devices in your wireless network.Wireless > Wireless MAC FilterWireless MAC FilterEnabled/Disabled To  filter  wireless  users  by  the  MAC addresses  of  their  computers  or  devices,  select  Enabled. Otherwise, keep the default, Disabled.Access RestrictionPrevent  When the Wireless MAC Filter is enabled and this option is selected, PCs listed in the MAC Address filter list will be prevented from accessing the wireless network.Permit  When the Wireless MAC Filter is enabled and this option is selected, only PCs listed in the MAC Address filter list will be granted access to the wireless network.   MAC Address Filter ListWireless Client List  Click this to open the Wireless Client List screen. Wireless Client List
13Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationWireless Client ListThis  screen  shows  computers  and  other  devices  on the wireless network. The list can be sorted by Client Name, Interface, IP Address, MAC Address, and Status. Select Save to MAC Address Filter List for any device you want to add to the MAC Address Filter List. Then click Add. To  update  the  on-screen  information,  click  Refresh. To exit this screen and return to the Wireless MAC Filter screen, click Close.MAC  01-32  Enter  the  MAC  addresses  of  the  devices whose wireless access you want to control.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Wireless > Advanced Wireless SettingsThe  Advanced  Wireless  Settings  screen  is  used  to  set  up the Router’s  advanced  wireless functions. These settings should  only  be  adjusted  by  an  advanced  user  because incorrect  settings  can  reduce  wireless  performance.  In most cases, keep the default settings.Wireless > Advanced Wireless Settings5 GHz and 2.4 GHz Advanced WirelessAP Isolation  This isolates all wireless clients and wireless devices on your network from each other. Wireless devices will  be  able  to  communicate  with  the  Router  but  not with each other. To use this function, select Enabled. AP Isolation is disabled by default. Frame  Burst  Enabling  this  option  should  provide  your network  with  greater  performance,  depending  on  the manufacturer of your wireless products. To use the Frame Burst option, keep the default, Enabled.Authentication Type  The default is Auto, which allows either  Open  System or  Shared  Key  authentication  to  be used. With Open System authentication, the sender and the  recipient  do  NOT  use  a WEP  key  for authentication. With Shared Key authentication, the sender and recipient use a WEP key for authentication.Basic Rate  The Basic Rate setting is not actually one rate of transmission but a series of rates at which the Router can  transmit.  (The  Basic  Rate  is  not  the  actual  rate  of data transmission. If you want to specify the Router’s rate of  data  transmission,  configure  the  Transmission  Rate setting.) The Router will advertise its Basic Rate to the other wireless  devices  in  your  network,  so  they  know  which rates will be used. The Router will also advertise that it will automatically  select  the  best  rate  for  transmission.  The default setting is Default, for transmission at all standard wireless rates (1-2 Mbps, 5.5 Mbps, 11 Mbps, 18 Mbps, and 24 Mbps).Transmission Rate  The rate of data transmission should be set depending on the speed of your wireless network. You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use the fastest  possible  data  rate  and  enable  the  Auto-Fallback feature.  Auto-Fallback  will  negotiate  the  best  possible connection  speed  between  the  Router  and  a  wireless client. The default value is Auto.N  Transmission  Rate  The  rate  of  data  transmission should be set depending on the speed of your Wireless-N networking. You can select from a range of transmission speeds,  or  you  can  select  Auto  to  have  the  Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. The default is Auto.Transmission  Power  Select  the  appropriate  level  of transmission  power:  High,  Medium,  or  Low.  In  most cases, keep the default, High.CTS  Protection  Mode  The  Router  automatically uses  CTS  (Clear-To-Send)  Protection  Mode  when  your Wireless-N and Wireless-G devices are experiencing severe problems and are not able to transmit to the Router in an environment with heavy 802.11b traffic. This option boosts the Router’s ability to catch all Wireless-N and Wireless-G transmissions but severely decreases performance. To use this option, keep the default, Auto. To disable this option, select Disabled.
14Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationBeacon Interval  A beacon is a packet broadcast by the Router to synchronize the wireless network. Enter a value between  20  and  1000  milliseconds. The Beacon  Interval value indicates the frequency interval of the beacon. The default value is 100. DTIM Interval  This value, between 3 and 255, indicates the  interval  of  the  Delivery  Traffic  Indication  Message (DTIM).  A  DTIM  field  is  a  countdown  field  informing clients  of  the  next  window  for  listening  to  broadcast and  multicast  messages. When  the  Router  has  buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. Its clients hear  the  beacons  and  awaken  to  receive  the  broadcast and multicast messages. The default value is 3.Fragmentation  Threshold  This  value  specifies  the maximum  size  for  a  packet  before  data  is  fragmented into  multiple  packets.  If  you  experience  a  high  packet error  rate,  you  may  slightly  increase  the  Fragmentation Threshold. Setting the Fragmentation Threshold too low may  result  in  poor  network  performance.  Only  minor reduction of the  default value is recommended. In most cases, it should remain at its default value of 2346.RTS Threshold  Should you encounter inconsistent data flow, only minor  reduction of the default value, 2347, is recommended.  If  a  network  packet  is  smaller  than  the preset  RTS  threshold  size,  the  RTS/CTS  mechanism  will not be enabled. The Router sends Request to Send (RTS) frames  to  a  particular  receiving  station  and  negotiates the sending  of  a  data  frame. After receiving an  RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission. The RTS Threshold value should remain at its default value of 2347.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Security > FirewallThe Firewall screen is used to configure a firewall that can filter out various types of unwanted traffic on the Router’s local network. Security > FirewallFirewallSPI  Firewall  Protection  To  use  firewall  protection, keep  the  default  selection,  Enabled. To  turn  off firewall protection, select Disabled.Internet FiltersFilter  Anonymous  Internet  Requests  This  feature makes  it  more  difficult  for  outside  users  to  work  their way into your network. This option is enabled by default. Disable it to allow anonymous Internet requests.Filter  Multicast  Multicasting  allows  for  multiple transmissions  to  specific  recipients  at  the  same  time.  If multicasting  is  permitted,  then  the  Router  will  allow  IP multicast  packets  to  be  forwarded  to  the  appropriate computers.  Select  this  option  to  enable  the  filter.  This option is disabled by default.Filter Internet  NAT  Redirection  This feature is  used  to prevent  a  local  computer  from  using  a  URL  or  Internet address  to  access  the  local  server.  Select  this  option  to enable the filter. This option is disabled by default.Filter IDENT (Port 113)  The Filter IDENT (Identification) option  keeps  port  113  from  being  scanned  by  devices outside of your local  network. This option  is enabled by default. Disable it to allow port 113 to be scanned.Web FiltersProxy  Use  of  WAN  proxy  servers  may  compromise  the Gateway’s  security. Denying  Proxy  will  disable  access  to any WAN proxy servers. Select this option to enable proxy filtering. Deselect the feature to allow proxy access.
15Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationJava  Java is a programming language for websites. If you deny Java, you run the risk of not having access to Internet sites  created  using  this  programming  language.  Select this option to enable Java filtering. Deselect the feature to allow Java usage.ActiveX  ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language. Select this option to enable ActiveX filtering. Deselect the feature to allow ActiveX usage.Cookies  A  cookie is  data  stored on  your computer and used by Internet sites when you interact with them. Select this option to filter cookies. Deselect the feature to allow cookie usage.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Security > VPN PassthroughThe  VPN  Passthrough  screen  allows  you  to  enable  VPN tunnels using IPSec, L2TP, or PPTP protocols to pass through the Router’s firewall.Security > VPN PassthroughVPN PassthroughIPSec  Passthrough  Internet  Protocol  Security  (IPSec)  is a suite of protocols used to implement secure exchange of packets at the  IP  layer. To  allow IPSec tunnels to pass through the Router, keep the default, Enabled. L2TP  Passthrough  Layer  2  Tunneling  Protocol  is  the method  used  to  enable  Point-to-Point  sessions  via  the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, keep the default, Enabled.PPTP  Passthrough  Point-to-Point  Tunneling  Protocol (PPTP)  allows  the  Point-to-Point  Protocol  (PPP)  to  be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, keep the default, Enabled. Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
16Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationAccess Restrictions > Internet Access PolicyThe  Internet  Access  Policy  screen  allows  you  to  deny  or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites during specific days and times.Access Restrictions > Internet AccessInternet Access PolicyAccess  Policy  Access can  be  managed by  a  policy.  Use the  settings  on  this  screen  to  establish  an  access  policy (after  Save  Settings  is  clicked).  Selecting  a  policy  from the  drop-down  menu  will  display  that  policy’s  settings. To  delete  a  policy,  select  that  policy’s  number  and click Delete This Policy. To view all the policies, click Summary. SummaryThe policies are listed with the following information: No., Policy Name, Access, Days, Time, and status (Enabled). To enable  a  policy,  select  Enabled. To  delete  a  policy, click Delete. Click Save Settings to save your changes, or click Cancel Changes to clear  your changes. To return to the Internet Access Policy screen, click Close. Status  Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and select Enabled.To create a policy, follow steps 1-11. Repeat these steps to create additional policies, one at a time.1.  Select  a  number  from  the  Access  Policy  drop-down menu.2.  Enter a Policy Name in the field provided. 3.  To enable this policy, select Enabled.4.  Click Edit List to select which PCs will be affected by the policy. The List of PCs screen appears. You can select a PC by MAC address or IP address. You can also enter a range of IP addresses if you want this policy to affect a group of PCs. After making your changes, click Save Settings to apply your changes, or click Cancel Changes to clear your changes. Then click Close. List of PCs5.  Select  the  appropriate  option,  Deny  or  Allow, depending  on  whether  you  want  to  block  or  allow Internet access for the computers listed on the List of PCs screen.6.  Decide  which  days  and  what  times  you  want  this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours.7.  You  can  block  websites  with  specific  URL  addresses. Enter each URL in a separate Website Blocking by URL Address field.8.  You can also block websites using specific keywords. Enter each keyword in a separate Website Blocking by Keyword field. 9.  You  can  filter  access  to  various  services  accessed over  the  Internet,  such  as  FTP  or  telnet.  (You can  block  up  to  three  applications  per  policy.)  From the  Applications list, select  the  application you want to block. Then click the >> button to move it to the  Blocked  List. To  remove  an  application  from  the Blocked List, select it and click the << button.10. If the application you want to block is not listed or you want to edit a service’s settings, enter the application’s name  in  the  Application  Name  field.  Enter  its  range in the Port Range fields. Select its protocol from the Protocol drop-down menu. Then click Add.To modify a service, select it from the Application list. Change its name, port range, and/or protocol setting. Then click Modify.To delete a service, select it from the Application list. Then click Delete.
17Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced Configuration11. Click  Save  Settings  to  save  the  policy’s  settings,  or click Cancel Changes to clear the changes.Applications and Gaming > Single Port ForwardingThe Single Port  Forwarding  screen  allows  you to  customize port services for common applications.When users send these types of requests to your network via the Internet,  the  Router will forward those  requests to the appropriate  servers  (computers).  Before  using  forwarding, you  should  assign  static  IP  addresses  to  the  designated servers (use the DHCP Reservation feature on the Basic Setup screen; refer to “DHCP Reservation” on page 4).Applications and Gaming > Single Port ForwardingSingle Port ForwardingCommon applications are available for the first five entries. Application Name  Select the appropriate application.To  IP  Address  Enter  the  IP  address  of  the  server  that should receive these requests. Enabled  For each application, select Enabled to activate port forwarding.For additional applications, complete the following fields:Application Name  Enter the name you wish to give the application. Each name can have up to 12 characters.External  Port  Enter  the  external  port  number  used  by the server or Internet application. Check with the Internet application documentation for more information.Internal  Port  Enter  the  internal  port  number  used  by the server or Internet application. Check with the Internet application documentation for more information.Protocol  Select the protocol(s) used for this application, TCP, UDP, or Both.To IP Address  For each application, enter the IP address of the computer that should receive the requests. If you assigned a static IP address to the computer, then you can look up its static IP address; refer to “DHCP Reservation” on page 4.Enabled  For each application, select Enabled to enable port forwarding.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Applications and Gaming > Port Range ForwardingThe  Port  Range  Forwarding  screen  allows  you  to  set  up public  services  on  your  network,  such  as  web  servers, ftp  servers,  e-mail  servers,  or  other  specialized  Internet applications.  (Specialized  Internet  applications  are  any applications  that  use  Internet  access  to  perform  functions such as videoconferencing or online gaming. Some Internet applications may not require any forwarding.)When users send these types of requests to your network via the Internet,  the  Router will forward those  requests to the appropriate  servers  (computers).  Before  using  forwarding, you  should  assign  static  IP  addresses  to  the  designated servers (use the DHCP Reservation feature on the Basic Setup screen; refer to “DHCP Reservation” on page 4).If you need to forward all ports to one computer, click  the DMZ tab.Applications and Gaming > Port Range Forwarding
18Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationPort Range ForwardingTo forward a port, enter the information on each line for the criteria required.Application  Name  In  this  field,  enter  the  name  you wish to give the application. Each name can be up to 12 characters.Start~End  Port  Enter  the  number  or  range  of  port(s) used by the server or Internet application. Check with the Internet application documentation for more information.Protocol  Select the protocol(s) used for this application, TCP, UDP, or Both.To IP Address  For each application, enter the IP address of  the  computer running  the  specific  application.  If  you assigned a static IP address to the computer, then you can look up its static IP address; refer to “DHCP Reservation” on page 4.Enabled  Select Enabled to enable port forwarding.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Applications & Gaming > Port Range TriggeringThe  Port  Range  Triggering  screen  allows  the  Router  to watch  outgoing  data  for  specific  port  numbers.  The  IP address of the computer that sends the matching data is remembered by the Router, so that when the requested data returns through the Router, the data is pulled back to  the  proper  computer  by  way  of  IP  address  and  port mapping rules.Applications and Gaming > Port Range TriggeringPort Range TriggeringApplication  Name  Enter  the  application  name  of  the trigger.Triggered Range  For each application, enter the starting and ending port numbers of the triggered port number range. Check with the Internet application documentation for the port number(s) needed.Forwarded  Range  For  each  application,  enter  the starting  and  ending  port  numbers  of  the  forwarded port  number  range. Check with  the  Internet application documentation for the port number(s) needed.Enabled  Select Enabled to enable port triggering.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Applications and Gaming > DMZThe  DMZ  feature  allows  one  network  computer  to  be exposed  to  the  Internet  for  use  of  a  special-purpose service  such  as  Internet  gaming  or  videoconferencing. DMZ hosting  forwards  all  the  ports at  the  same  time  to one PC. The Port Range Forwarding feature is more secure because it only opens the ports you want to have opened, while DMZ hosting opens all the ports of one computer, exposing the computer to the Internet. Applications and Gaming > DMZDMZAny computer whose port is being forwarded should have its DHCP client function disabled and have a new static IP address assigned to it because its IP address may change when using the DHCP function.Enabled/Disabled  To  disable  DMZ  hosting,  select Disabled.  To  expose  one  PC,  select  Enabled.  Then configure the following settings:Source IP Address  If you want any IP address to be the source, select Any IP Address. If you want to specify an IP address or range of IP addresses as the designated source, select and complete the IP address range fields.Destination  If  you  want  to  specify  the  DMZ  host  by  IP address,  select  IP  Address  and  enter  the  IP  address  in the  field  provided.  If  you  want  to  specify  the  DMZ  host by MAC address, select MAC Address and enter the MAC address in the field provided. To retrieve this information, click DHCP Client Table.
19Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationDHCP Client TableThe DHCP Client Table lists computers and other devices that have been assigned IP addresses by the Router. The list  can  be  sorted  by  Client  Name,  Interface,  IP  Address, and MAC Address. To select a DHCP client, click Select.  To update the  on-screen  information,  click  Refresh. To  exit this screen and return to the DMZ screen, click Close.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Applications and Gaming > QoSQuality of Service (QoS) is a method that assigns priority to  specific  types  of  network  traffic,  which  often  are demanding,  real-time  applications,  such  as  gaming, videoconferencing,  video  streaming,  and  Voice  over Internet  Protocol  (VoIP)  telephony.  QoS  helps  to  ensure optimal performance for these types of uses.Applications and Gaming > QoS QoS (Quality of Service)WirelessWMM  Support  Wi-Fi  Multimedia  (WMM)  is  a  wireless Quality of Service feature that improves quality for audio, video,  and  voice  applications  by  prioritizing  wireless traffic. To  use  this  feature,  the  wireless  client  devices  in your network must support Wireless WMM. If you would like  to  disable  this  feature,  select  Disabled.  Otherwise, keep the default, Enabled.No  Acknowledgement  If  you  want  to  disable  the Router’s Acknowledgement feature, so the Router will not re-send data if an error occurs, select Enabled. Otherwise, keep the default, Disabled.Internet Access PriorityIn  this  section,  you  can  set  the  bandwidth  priority  for a variety of applications and  devices. There are four levels of  priority;  High,  Medium,  Normal,  or  Low.  When  you set  priority, do  not  set  all  applications  to  High,  because this  will  defeat  the  purpose  of  allocating  the  available bandwidth. If you want to select below normal bandwidth, select Low. Depending on the application, a few attempts may be needed to set the appropriate bandwidth priority.Enabled/Disabled  To use the QoS policies you set, select Enabled. Otherwise, select Disabled.Upstream BandwidthUpstream  Bandwidth  This  option  sets  the  maximum outgoing bandwidth  that  applications can  use. To  allow the Router to set the maximum,  keep  the  default,  Auto. To specify  the  maximum, select  Manual. Then enter the appropriate value and select Kbps or Mbps.CategorySelect  one  of  the  following  categories:  Applications, Online Games, MAC Address, or Voice Device. Proceed to the instructions for your selection.SummaryThis  lists  the  QoS  entries  you  have  created  for  your applications and devices. Refer to “Summary” on page 21 for more information.ApplicationsApplications  Select  the  appropriate  application.  If  you select  Add a  New  Application, follow the  instructions  in the Add a New Application section.Priority  Select  the  appropriate  priority:  High,  Medium (Recommended), Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.
20Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationAdd a New ApplicationAdd a New ApplicationEnter a Name  Enter a name for this application.Port Range  Enter the port range that the application will be using. For example, if you want to allocate bandwidth for FTP,  you can  enter 21-21.  If  you need  services for an application that uses from 1000 to 1250, you enter 1000-1250  as  your settings. You  can  have  up  to  three  ranges to  define  for  this  bandwidth  allocation.  Port  numbers can  range  from  1  to  65535.  Check  your  application’s documentation for details on the service ports used.Select the protocol TCP or UDP, or select Both. Priority  Select  the  appropriate  priority:  High,  Medium (Recommended), Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.Online GamesOnline GamesOnline GamesGames  Select the appropriate game. If you select Add a New Game, follow the instructions in the Add a New Game section.Priority  Select  the  appropriate  priority:  High,  Medium (Recommended), Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.Add a New GameEnter a  Name  Enter  any  name  to  indicate  the  name  of the entry.Port Range  Enter the port  range  that the game  will be using. You can have up to three ranges to define for this bandwidth allocation. Port numbers can range from 1 to 65535. Check your application’s documentation for details on the service ports used.Select the protocol TCP or UDP, or select Both. Priority  Select  the  appropriate  priority:  High,  Medium (Recommended), Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.MAC AddressMAC AddressThe  MAC  address  of  the  computer  you  are  using  is displayed.Enter a Name  Enter a name for your device.MAC Address  Enter the MAC address of your device.Priority  Select  the  appropriate  priority:  High,  Medium (Recommended), Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.
21Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationVoice DeviceVoice DeviceEnter a Name  Enter a name for your voice device.MAC  Address  Enter  the  MAC  address  of  your  voice device.Priority  Select  the  appropriate  priority:  High (Recommended), Medium, Normal, or Low.Click  Apply  to  save  your  changes.  Your  new  entry  will appear in the Summary list.SummaryThis  lists  the  QoS  entries  you  have  created  for  your applications and devices.Priority  This column displays the  bandwidth priority  of High, Medium, Normal, or Low.Name  This  column  displays  the  application,  game, device, or port name.Information  This  column  displays  the  port  range  or MAC address  entered for  your entry.  If a  pre-configured application or game was selected, there will be no valid entry shown in this section.Remove  Click this button to remove an entry.Edit  Click this button to make changes.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Administration > ManagementThe  Management  screen  allows  the  network’s administrator  to  manage  specific  Router  functions  for access and security.Administration > ManagementRouter PasswordRouter AccessTo ensure the Router’s security, you will be asked for your password  when  you  access  the  Router’s  browser-based utility. The default is admin.Router Password  Enter a new password for the Router.Re-enter to confirm  Enter the password again to confirm.Local Management AccessAccess  via  HTTP  (HyperText  Transport  Protocol)  is  the communications  protocol  used  to  connect  to  servers on the World Wide Web. HTTPS  uses SSL  (Secure Socket Layer)  to  encrypt  data  transmitted  for  higher  security. Select HTTP or HTTPS. The default is HTTP.Access via Wireless  If you are using the Router in a public domain  where  you  are  giving  wireless  access  to  your guests,  you  can  disable  wireless  access  to  the  Router’s web-based utility. You will only be able to access the utility via a wired connection if you disable the setting. Keep the default, Enabled, to allow wireless access to the utility, or select Disabled to block wireless access to the utility.Remote Management AccessRemote  Management  To  permit  remote  access  of  the Router  from  the  Internet  (outside  the  local  network), select Enabled. Otherwise, keep the default, Disabled.
22Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationAccess  via HTTP  (HyperText  Transport  Protocol)  is  the communications  protocol  used  to  connect  to  servers on the World Wide Web. HTTPS  uses SSL  (Secure Socket Layer)  to  encrypt  data  transmitted  for  higher  security. Select HTTP or HTTPS. HTTP is the default.Remote  Upgrade  If  you  want  to  be  able  to  upgrade the Router from the Internet (outside the local network), select Enabled. (You must have the Remote Management feature  enabled  as  well.)  Otherwise,  keep  the  default, Disabled.Allowed  Remote  IP  Address  If  you  want  to  be  able  to access the Router from any external IP address, select Any IP Address. If you want to specify an external IP address or range of IP addresses, then select the second option and complete the fields provided.Remote Management Port  Enter the port number that will be open to outside access. To access the Router, you will need to enter the Router’s password.NOTE:  When  you  are  in  a  remote  location and  wish  to  manage  the  Router,  enter  http://xxx.xxx.xxx.xxx:yyyy  or https://xxx.xxx.xxx.xxx:yyyy,  depending on whether you use HTTP or HTTPS. Enter the Router’s  specific  Internet  IP  address  in  place of  xxx.xxx.xxx.xxx,  and  enter  the  Remote Management Port number in place of yyyy.Advanced FeaturesSIP ALG  The Session Initiation Protocol (SIP) Application Layer Gateway (ALG) feature allows SIP packets, which are used  for  Voice  over  Internet  Protocol  (VoIP),  to  traverse the NAT firewall. For more information, contact your VoIP service provider.To use the SIP ALG feature for VoIP service, select Enabled. If  you are not  using VoIP service, then keep  the  default, Disabled.If  your  VoIP  service  provider  uses  other  NAT  traversal solutions  such  as  Session  Traversal  Utilities  for  NAT (STUN), Traversal Using  Relay  NAT  (TURN),  or  Interactive Connectivity  Establishment  (ICE),  then  keep the  default, Disabled.UPnPUniversal  Plug  and  Play  (UPnP)  allows  the  appropriate Windows operating system to automatically configure the Router for various  Internet applications, such as gaming and videoconferencing.UPnP  If you want to use UPnP, keep the default, Enabled. Otherwise, select Disabled.Allow  Users  to  Configure  Keep  the  default,  Enabled, if  you  want  to  be  able  to  make  manual  changes  to  the Router  while  using  the  UPnP  feature.  Otherwise,  select Disabled.Allow Users to Disable Internet Access  Select Enabled, if  you  want  to  be  able  to  prohibit  any  and  all  Internet connections. Otherwise, keep the default, Disabled.Backup and RestoreBackup  Configurations  To  back  up  the  Router’s configuration  settings,  click  this  button  and  follow  the on-screen instructions.Restore  Configurations  To  restore  the  Router’s configuration settings, click this button and follow the on-screen instructions. (You must have previously backed up the Router’s configuration settings.)Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.Administration > LogThe  Router  can  keep  logs  of  all  traffic  for  your  Internet connection.Administration > LogLogLog  To  disable  the  Log  function,  select  Disabled.  To monitor  traffic  between  the  network  and  the  Internet, keep the default, Enabled. With logging enabled, you can choose to view temporary logs.
23Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationLogviewer IP Address   If your computer uses Logviewer software,  you  can  enter  the  fixed  IP  address  of  the computer running the software. The Router will now send updated logs to that computer.Click Save Settings to apply your changes, or click Cancel Changes to clear your changes. View  Log  When  you  wish  to  view  the  logs,  click  this option. Log > View LogLog • Type  Select Incoming Log, Outgoing Log, Security Log, or DHCP Client Log.  • <Type> Log  The Incoming Log displays a temporary log  of  the  source  IP  addresses  and  destination port  numbers  for  the  incoming  Internet  traffic.  The Outgoing  Log  displays  a  temporary  log  of  the  local IP  addresses,  destination  URLs/IP  addresses,  and service/port numbers for the outgoing Internet traffic. The Security log displays the login information for the browser-based  utility.  The  DHCP  Client  Log  displays the local DHCP server status information.Click Save the Log to save this information to a file on your  computer’s  hard  drive.  Click  Refresh to  update the log. Click Clear to clear all the information that is displayed.Administration > DiagnosticsThe  diagnostic  tests  (Ping  and Traceroute)  allow  you  to check the connections of your network devices, including connection to the Internet.Administration > DiagnosticsDiagnosticsPing TestPing checks the status of a connection. IP  or  URL  Address  Enter  the  address  of  the  PC  whose connection you wish to test.Packet  Size  Enter the  packet  size  you want  to use. The default is 32 bytes.Number to Ping  Enter the number of times you wish to test the connection. The default is 5.Start  Test  To  run  the  test,  click  this  button.  The  Ping screen shows if the test is successful. Click Close to return to the Diagnostics screen. Click Stop to stop the test.PingTraceroute TestTraceroute checks the performance of a connection.IP  or  URL  Address  Enter  the  address  of  the  PC  whose connection you wish to test.Start  Test  Click  to  run  the  test.  The  Traceroute  screen shows if the test is successful. Click Close to return to the Diagnostics screen. Click Stop to stop the test.Traceroute
24Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationAdministration > Factory DefaultsThe  Factory  Defaults  screen  allows  you  to  restore  the Router’s configuration to its factory default settings. Factory DefaultsRestore Factory Defaults  To reset the Router’s settings to  the  default  values,  select  Restore  Factory  Defaults. Any settings you have saved will be lost when the default settings are restored.Administration > Factory DefaultsNOTE: Do not restore the factory defaults unless you are having difficulties with the Router and have  exhausted  all  other  troubleshooting measures. Once the Router is reset, you will have to re-enter all of your configuration settings.Administration > Firmware UpgradeThe  Firmware  Upgrade  screen  allows  you  to  upgrade  the Router’s  firmware.  Do  not  upgrade  the  firmware  unless you are experiencing problems with the Router or the new firmware has a feature you want to use. Administration > Firmware UpgradeNOTE:  The  Router  may  lose  the  settings you  have  customized.  Before  you  upgrade its  firmware,  write  down  all  of  your  custom settings.  After  you  upgrade  its  firmware,  you will  have  to  re-enter  all  of  your  configuration settings.Firmware UpgradeBefore  upgrading  the  firmware,  download  the Router’s  firmware  upgrade  file  from  our  website  at  www.linksys.com/support.Please Select a File to Upgrade  Click Browse and select the firmware upgrade file.Start Upgrade  After you have selected the appropriate file, click this button, and follow the on-screen instructions. WARNING:  Do  not  interrupt  the  upgrade process. You  should not  turn  off the  power or press  the  Reset  button  during  the  upgrade process. Doing so may disable the Router.Status > RouterThe Router screen displays information about the Router and its current settings.Status > RouterRouter InformationFirmware  Version  The  version  number  of  the  Router’s current firmware is displayed.Firmware  Verification  The  unique  identifier  of  the firmware is displayed.Current Time  The time set on the Router is displayed.Internet  MAC  Address  The  Router’s  MAC  Address,  as seen by your ISP, is displayed.Server Name  The Server Name is the name used for the USB network storage, FTP, and media server functions of the Router. The default, Ciscoxxxxx, is displayed. XXXXX represents the last 5 digits of your serial number. This can be found on the bottom of the router.
25Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced ConfigurationNOTE:  If  you  used  the  setup  software  for installation,  then  the  name  of  your  wireless network  (up  to  15  characters)  is  the  server name of the Router.Host Name  The Host Name of the Router is displayed (if it was entered on the Setup > Basic Setup screen).Domain  Name  The  Domain  Name  of  the  Router  is displayed  (if  it  was  entered  on  the  Setup  >  Basic  Setup screen).Internet ConnectionThis  section  shows  the  current  network  information stored in the Router. The information varies depending on the Internet connection type selected on the Setup > Basic Setup screen.For  a  DHCP  connection,  select  Release  IP  Address  or Renew  IP  Address  as  appropriate  to  release  or  renew a  DHCP  lease.  For  a  PPPoE  or  similar  connection,  select Connect or Disconnect  as  appropriate to connect  to or disconnect from the Internet.Click Refresh to update the on-screen information. Status > Local NetworkThe Local Network screen displays information about the local network. Status > Local NetworkLocal NetworkLocal  MAC  Address  The  MAC  address  of  the  Router’s local, wired interface is displayed.Router IP Address  The Router’s IP address, as it appears on your local network, is displayed.Subnet Mask  The Subnet Mask of the Router is displayed.DHCP ServerDHCP  Server  The  status  of  the  Router’s  DHCP  server function is displayed.Start IP Address  For the range of IP addresses that can be used by devices on your local network, the starting IP address is displayed.End  IP  Address  For  the  range  of  IP  addresses  that can be used by devices on your local network, the ending IP address is displayed.DHCP  Client  Table  Click  this  option  to  view  a  list  of computers or other devices that are using the Router as a DHCP server.DHCP Client TableDHCP Client TableThe  DHCP  Client  Table  lists  computers  and  other devices that have been assigned IP addresses by the Router.  The  list  can  be  sorted  by  IP  Address,  MAC Address,  Interface,  and  Client  Name.  To  remove  a DHCP  client,  click  Delete.  To  update  the  on-screen information,  click  Refresh.  To  exit  this  screen  and return to the Local Network screen, click Close.Status > Wireless NetworkThe Wireless Network screen displays the status information of your 5 GHz and/or 2.4 GHz wireless network(s).Status > Wireless Network
26Advanced Dual-Band N RouterLinksys E2500 Chapter 1: Advanced Configuration5GHz/2.4GHz Wireless NetworkMAC  Address  The  MAC  address  of  the  Router’s  local, wireless interface is displayed.Mode  The  wireless  mode  used  by  the  network  is displayed.Network Name (SSID)  The name of the wireless network, which is also called the SSID, is displayed.Radio Band  The Radio Band setting selected on the Basic Wireless Settings screen is displayed.Wide Channel  The Wide Channel setting selected on the Basic Wireless Settings screen is displayed.Standard  Channel  The  Standard  Channel  setting selected on the Basic Wireless Settings screen is displayed.Security  The  wireless  security  method  used  by  the Router is displayed.SSID Broadcast  The status of the SSID Broadcast feature is displayed.
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31Advanced Dual-Band N RouterLinksys E2500  Federal Communication Commission Interference Statement  This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.  These limits  are designed to provide reasonable  protection  against  harmful  interference  in  a residential  installation.  This  equipment  generates,  uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.  However, there is no guarantee that interference will not occur in a particular  installation.    If  this  equipment  does  cause harmful interference to radio or television reception, which can be determined by turning the equipment off  and  on, the user is encouraged to try to correct the interference by one of the following measures:  - Reorient or relocate the receiving antenna. -  Increase  the  separation  between  the  equipment  and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help.  FCC Caution: Any changes or modifications not expressly approved  by  the  party  responsible  for  compliance  could void the user's authority to operate this equipment.  For operation within 5.15 ~ 5.25GHz and 5.47~ 5.725GHz frequency range, it is restricted to indoor environment.  This  device  complies  with  Part  15  of  the  FCC  Rules. Operation  is  subject  to  the  following  two  conditions:  (1) This device may not cause harmful interference, and (2) this  device  must  accept  any  interference  received, including interference that may cause undesired operation.  IMPORTANT NOTE: Radiation Exposure Statement: This  equipment  complies  with  FCC  radiation  exposure limits  set  forth  for  an  uncontrolled  environment.  This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.  This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Industry Canada statement:  This  device  complies  with  RSS-210  of  the  Industry Canada Rules. Operation is subject to the following two conditions:  (1)  This  device  may  not  cause  harmful interference,  and  (2)  this  device  must  accept  any interference  received,  including  interference  that  may cause undesired operation. Ce dispositif est conforme à la norme CNR-210 d'Industrie Canada applicable aux appareils radio exempts de licence. Son fonctionnement est sujet aux deux conditions suivantes: (1) le dispositif ne doit pas produire de brouillage préjudiciable, et (2) ce dispositif doit accepter tout brouillage reçu, y compris un brouillage susceptible de provoquer un fonctionnement indésirable.   IMPORTANT NOTE:  Radiation Exposure Statement: This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Caution:  (i) the device for operation in the band 5150-5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile satellite systems; (ii) high-power radars are allocated as primary users (i.e. priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.  Avertissement: (i) les dispositifs fonctionnant dans la bande 5 150-5 250 MHz sont réservés uniquement pour une utilisation à l'intérieur afin de réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux;  (ii) De plus, les utilisateurs devraient aussi être avisés que les utilisateurs de radars de haute puissance sont désignés utilisateurs principaux (c.-à-d., qu'ils ont la priorité) pour les bandes 5 250-5 350 MHz et 5 650-5 850 MHz et que ces radars pourraient causer du brouillage et/ou des dommages aux dispositifs LAN-EL.
Linksys E2500 Appendix A: Troubleshooting32Advanced Dual-Band N RouterAppendix A: TroubleshootingYour computer cannot connect to the Internet. Follow these instructions until your computer can connect to the Internet: • Verify  that  the  power  adapter  is  connected  to  the Router and to a power outlet. If connected to a power strip, make sure the power strip is turned on. • Make  sure  that  the  Power  LED,  Internet  LED,  and Wireless LED are on. If you have any wired computers connected to the Router, make sure the appropriate port LED is lit. NOTE: The Power LED  flashes  after  the  power adapter is plugged in to the Router. If the light remains  flashing  for  more  than  30  seconds, it  may  indicate  the  Router  is  not  working properly.  For  assistance,  use  a  computer  or device  with  Internet  access  to  refer  to  our Linksys  E2500  support  section  on  the  web  at  www.linksys.com/support • Make sure that your DSL or cable modem is connected to your Router’s Internet port using an Ethernet cable. • Reset all of the devices on your network:1.  Turn  off  all  of  your  network  computers  and devices,  and  then  unplug  the  power  adapter from your Router.2.  Unplug  your  modem’s  power  cord  (and  coaxial cable if you have a cable modem), and wait two minutes.3.  Reconnect  your  modem’s  power  cord  (and coaxial cable) and wait two more minutes.4.  Reconnect the power adapter to the Router, and then  power  on  all  of  your  network  computers and devices.The modem does not have an Ethernet port.The  modem  is  a  dial-up  modem  for  traditional  dial-up service. To use the Router, you need a cable/DSL modem and high-speed Internet connection.You cannot use the DSL service to connect manually to the Internet.After  you have  installed  the  Router,  it  will  automatically connect to your Internet Service Provider (ISP), so you no longer need to connect manually.The  DSL  telephone  line  does  not  fit  into  the  Router’s Internet port.The Router does not replace your modem. You still need your DSL modem in order to use the Router. Connect the telephone  line  to  the  DSL  modem,  and  then  insert  the setup CD into your computer. Click Set up your Linksys Router and follow the on-screen instructions.When  you  double-click  the  web  browser,  you  are prompted for a username and password. If you want to get rid of the prompt, follow these instructions.Launch the web browser and perform the following steps (these steps are specific to Internet Explorer but are similar for other browsers):1.  Select Tools > Internet Options. 2.  Click the Connections tab.3.  Select Never dial a connection. 4.  Click OK.The  Router  does  not  have  a  coaxial  port  for  the  cable connection.The Router does not replace your modem. You still need your  cable  modem  in  order  to  use  the  Router.  Connect your  cable  connection  to  the  cable  modem,  and  then insert the setup CD into your computer. Click Set up your Linksys Router and follow the on-screen instructions.The computer cannot connect wirelessly to the network.Make sure the wireless network name or SSID is the same on both the computer and the Router. If you have enabled wireless  security,  then  make  sure  the  same  security method and key are used by both the computer and the Router.You need to modify the settings on the Router.Router settings can be modified using the Cisco Connect software,  refer  to  “How  to  Access  Cisco  Connect”  on page 12. To modify the advanced settings, go to Advanced Settings. Refer to “Advanced Settings” on page 12.You want to access the browser-based utility  from Cisco Connect.To  enter  the  browser-based  utility  from  Cisco  Connect, follow these steps:1.  Open Cisco Connect.2.  On the Main Menu, click Router Settings.3.  Click Advanced Settings. 4.  Write  down  the  username  and  password  that  are displayed.  (To  help  protect  your  password,  you  can copy it to the Clipboard by clicking Copy Password.)5.  Click OK.
Linksys E2500 Appendix A: Troubleshooting33Advanced Dual-Band N Router6.  Your  web  browser  automatically  opens.  Enter  the username  and  password,  and  then  click  OK.  (If  you copied the password to the Clipboard in step 4, press Ctrl-V to paste it into the Password field.)When you try to log into the browser-based utility, your password does not work.Your wireless security password also serves as the browser-based utility’s login password. To see this password:1.  Open Cisco Connect.2.  On the Main Menu, click Router Settings.3.  The Password is displayed on the left side of the screen.The Router does not recognize your USB storage device.Make sure  the  USB storage  device  uses the  NTFS or  FAT format. To check its format, follow these instructions:1.  Connect  the  USB  storage  device  directly  to  your computer. 2.  On  your  desktop,  double-click  Computer  or  My Computer icon. 3.  Right-click  the  USB  storage  device,  and  click Properties.4.  The  format  is  listed  in  the  File  system description.  If  the  format  is  not  NTFS  or  FAT,  then back up the data on the USB storage device.    After you have backed up the data on the USB storage drive,  you  can  format  it.  Right-click  the  USB  storage device,  and  click  Format.  Follow  the  on-screen instructions.  For  more information,  refer to Windows Help.If  the  Router  still  does  not  recognize  the  USB  storage device, then remove the power adapter from the Router’s Power  port. Wait  five  seconds,  and  then  re-connect  the power adapter to the Router’s Power port.In Windows Vista, you do not see the USB storage device in the Network screen.Make  sure the  Router  and  your  computer use  the  same workgroup  name.  (The  default  workgroup  name  of  the Router  is  workgroup.  In  Windows  Vista,  right-click  the Computer  icon  and  select  Properties.  Click  Advanced system  settings.  Click  the  Computer  Name  tab.  The workgroup  name  is  displayed.)  If  they  differ,  then change the workgroup name of the Router. Follow these instructions:1.  Access the  web-based  utility  of  the Router.  (Refer to “How to Access the Browser-Based Utility” on page 1.)2.  Click the Storage tab.3.  Click the Administration tab.4.  In  the  Workgroup  Name  field,  enter  the  workgroup name of your computer. 5.  Click Save Settings.In  Windows  XP,  you  do  not  see  the  Router  in  the  My Network Places screen.In  the  Network  Tasks  section,  click  Show  icons  for networked UPnP devices. If the Router does not appear, follow these instructions:1.  Go to Start > Control Panel > Firewall. 2.  Click the Exceptions tab. 3.  Select UPnP Framework.4.  Click OK.In Windows XP, you do not see your USB storage device in the View workgroup computers screen.Make  sure the  Router  and  your  computer use  the  same workgroup  name.  (The  default  workgroup  name  of the  Router  is  workgroup. In Windows XP, go  to Start  > Control Panel > System. Click the Computer Name tab. The  workgroup  name  is  displayed.)  If  they  differ,  then change the workgroup name of the Router. Follow these instructions:1.  Access the  web-based  utility  of  the Router.  (Refer to “How to Access the Browser-Based Utility” on page 1.)2.  Click the Storage tab.3.  Click the Administration tab.4.  In  the  Workgroup  Name  field,  enter  the  workgroup name of your computer. 5.  Click Save Settings.WEB: If your questions are not addressed here, refer to our E2500 support section on the web,  www.linksys.com/support/E2500
Linksys E2500 Appendix B: Specifications34Advanced Dual-Band N RouterAppendix B: SpecificationsModel Name  Linksys E2500Description  Advanced Dual-Band N RouterModel Number  E2500# of Antennas  4 total, 2 internal antennas per    each 2.4 GHz & 5 GHz radio bandDetachable (y/n)  No       Modulation  802.11b: CCK, QPSK, BPSK    802.11g: OFDM   802.11a: OFDM   802.11n: BPSK, QPSK, 16-QAM,    64-QAM Receive Sensitivity  2.4 GHz (Typical)  802.11b: -87 dBm @ 11Mbps   802.11g: -70 dBm @ 54Mbps    802.11n 20MHz: -70 dBm @ MCS15   802.11n 40MHz: -66 dBm @ MCS15  5GHz   802.11a:  -70 dBm @ 54Mbps   802.11n 20MHz: -66 dBm @ MCS23   802.11n 40MHz: -62 dBm @ MCS23Antenna Gain in dBi  2.4GHz:   Antenna 1 (right rear): ≤2.94 dBi   Antenna 2 (front right): ≤3.78 dBi  5GHz:   Antenna 1 (right front): ≤5.86 dBi   Antenna 2 (front left): ≤4.88 dBiUPnP  SupportedSecurity features  WEP, WPA, WPA2   Security key bits  Up to 128-bit encryptionEnvironmentalDimensions  8.86" x 1.38" x 7.09"   (225 x 35 x 180 mm)Unit Weight  15.94 oz (452 g)Power  12V, 1ACertifications  FCC, IC, CE, Wi-Fi A/B/G/N Operating Temp.  0 to 40°C (32 to 104°F)Storage Temp.  -20 to 60°C (-4 to 140°F)Operating Humidity  10 to 80%, Relative Humidity and    NoncondensingStorage Humidity  5 to 90% NoncondensingSpecifications are subject to change without notice.11011312C-JL3.5  3.5 5 5
www.linksys.com/supportCisco, the Cisco logo, and Linksys are trademarks or registered trademarks of Cisco and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document or website are the property of their respective owners.© 2011 Cisco. All rights reserved.

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