MTRLC MG7540 16x4 DOCSIS 3.0 Cable Modem plus AC1600 Router User Manual

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MG7540
16x4 DOCSIS 3.0 Cable
Modem plus AC1600 Router
User Manual
VER: 1.0
MG7540 Cable Modem User Manual
Contents
Safety Precautions ............................................................................................. 1
Overview ............................................................................................................ 2
2.1
Application ............................................................................................. 2
2.2
Features ................................................................................................ 2
2.3
Standards Compatibility and Compliance ............................................. 3
Hardware Description and Hardware Installation ............................................... 4
3.1
3.2
Hardware Description ............................................................................ 4
3.1.1
Front Panel ................................................................................. 4
3.1.2
Rear Panel .................................................................................. 5
Hardware Installation ............................................................................. 6
3.2.1
Connecting the Device ............................................................... 6
PC Network Configuration and Login ................................................................. 7
4.1
PC Network Configuration ..................................................................... 7
4.2
Logging In to the MG7540 Cable Modem ............................................. 9
Web-Based Management ................................................................................ 11
5.1
5.2
5.3
Status .................................................................................................. 11
5.1.1
Software.................................................................................... 11
5.1.2
Connection................................................................................ 12
5.1.3
Diagnostics ............................................................................... 14
5.1.4
Security ..................................................................................... 15
5.1.5
Event Log.................................................................................. 16
Basic Router ........................................................................................ 16
5.2.1
Setup ........................................................................................ 16
5.2.2
DHCP........................................................................................ 18
5.2.3
DHCPv6 .................................................................................... 20
5.2.4
LAN IPv6................................................................................... 21
5.2.5
DDNS........................................................................................ 21
5.2.6
Backup/Restore ........................................................................ 22
Advanced Router ................................................................................. 23
5.3.1
Options ..................................................................................... 23
5.3.2
IP Filtering................................................................................. 25
5.3.3
MAC Filtering ............................................................................ 26
5.3.4
Port Filtering ............................................................................. 26
5.3.5
Forwarding ................................................................................ 27
MG7540 Cable Modem User Manual
5.4
5.5
5.6
5.7
5.3.6
Port Triggers ............................................................................. 29
5.3.7
RIP Setup ................................................................................. 29
5.3.8
DMZ Host.................................................................................. 32
Wireless ............................................................................................... 33
5.4.1
Basic ......................................................................................... 33
5.4.2
Radio ........................................................................................ 35
5.4.3
WPS_RADIUS_WEP ................................................................ 35
5.4.4
Guest ........................................................................................ 38
5.4.5
Access ...................................................................................... 39
5.4.6
Advanced .................................................................................. 41
5.4.7
WMM ........................................................................................ 45
5.4.8
Scan/Bridging ........................................................................... 47
Protection & Parental Control .............................................................. 47
5.5.1
Firewall Basic............................................................................ 48
5.5.2
Event Log.................................................................................. 49
5.5.3
Parental Control ........................................................................ 50
VPN ..................................................................................................... 51
5.6.1
IPSec ........................................................................................ 51
5.6.2
L2TP/PPTP ............................................................................... 52
5.6.3
Event Log.................................................................................. 53
Logout.................................................................................................. 54
Q&A.................................................................................................................. 55
ii
MG7540 Cable Modem User Manual
Safety Precautions
Read the following information carefully before operating the device. Please follow
the following precaution items to protect the device from risks and damage caused
by fire and electric power:
Use volume labels to mark the type of power.
Use the power adapter that is packed within the device package.
Pay attention to the power load of the outlet or prolonged lines. An
overburden power outlet or damaged lines and plugs may cause electric
shock or fire accident. Check the power cords regularly. If you find any
damage, replace it at once.
Proper space left for heat dissipation is necessary to avoid any damage
caused by overheating to the device. The holes on the device are designed
for heat dissipation to ensure that the device works normally. Do not cover
these heat dissipation holes.
Do not put this device close to a place where a heat source exits or high
temperature occurs. Avoid the device from direct sunshine.
Do not put this device close to a place where is over damp or watery. Do not
spill any fluid on this device.
Do not connect this device to any PC or electronic product, unless our
customer engineer or your broadband provider instructs you to do this,
because any wrong connection may cause any power or fire risk.
Do not place this device on an unstable surface or support.
The screen of the coaxial cable is intended to be connected to earth in the
building installation.
MG7540 Cable Modem User Manual
Overview
The MG7540 is targeted towards DOCSIS3.0 cable modem and gateway. With
sixteen downstream channels and four upstream channels, it supports up to
600Mbs/160Mbs.The MG7540 incorporates a variety of industry standard
peripheral interfaces including dual IEEE802.3 10/100/1000Mbps interface, one
with integrated GPHY. The MG7540 supports WLAN access. It complies with IEEE
802.11,802.11b/g,802.11n and 802.11ac specifications, WEP, WPA, and WPA2
security specifications. The 2.4GHz WLAN of the MG7540 supports 2T2R, The
5GHz WLAN of the MG7540 supports 3T3R.
2.1
Application
Home gateway
SOHOs
Small enterprises
Higher data rate broadband sharing
Audio and video streaming and transfer
PC file and application sharing
Network and online gaming
2.2
Features
User-friendly GUI for web configuration
Several pre-configured popular games. Just enable the game and the port
settings are automatically configured.
Compatible with all standard Internet applications
WLAN with high-speed data transfer rates of up to 600 Mbps, compatible
with IEEE 802.11b/g/n/ac, 2.4GHz/5GHz compliant equipment
IP routing and bridging
Network/port address translation (NAT/PAT)
Wireless LAN security: WPA, 802.1x, RADIUS client
MG7540 Cable Modem User Manual
Universal plug-and-play(UPnP)
File server for network attached storage (NAS) devices
Web filtering
Remote update
System statistics and monitoring
2.3
Standards Compatibility and Compliance
Support application level gateway (ALG)
DOCSIS3.0
IEEE 802.3
IEEE 802.3u
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
IEEE 802.11ac
MG7540 Cable Modem User Manual
Hardware Description and Hardware Installation
3.1
Hardware Description
3.1.1 Front Panel
The following table describes the indicators on the front panel.
Indicator Color
Power
Green
Status
Description
The device is powered on and the device
On
operates normally.
Off
Green
D/S
Blue
Green
The device is powered off.
On
CM has locked D/S frequency
Blink
CM scan D/S frequency
Off
Device is powered off.
On
CM has locked D/S channel bonding
Blink
CM is on D/S channel bonding
Off
Device is powered off.
On
CM has locked U/S frequency
Blink
CM is range and scan U/S frequency
Device is powered off or CM scan D/S
Off
U/S
Blue
frequency.
On
CM has locked U/S channel bonding
Blink
CM is on U/S channel bonding
Device is powered off or CM scan D/S
Off
Internet
Green
Ethernet
Green
frequency.
On
CM online.
Blink
Catching the wan ip address.
Off
Not connect.
On
The Ethernet interface is connected.
MG7540 Cable Modem User Manual
Indicator Color
1/2/3/4
WLAN
Status
Description
Data is being transmitted through the
Blink
Green
Ethernet interface.
Off
The Ethernet interface is disconnected.
On
WLAN is enabled.
Data is being transmitted through the
Blink
wireless interface.
Off
WLAN is disabled.
Connection
On
WPS
Green
succeeds
under
Wi-Fi
Protected Setup.
Negotiation is in progress under Wi-Fi
Blink
Protected Setup.
Off
Wi-Fi Protected Setup is disabled.
3.1.2 Rear Panel
The following table describes the interfaces or the buttons on the rear panel.
Interface
Description
Antenna
The antenna interface, for connecting the antennas.
Cable
RF cable port, for connecting HFC cable.
Reset
WPS
WLAN
Eth 4~1
Power
Press the button for at least 5 second and then release it. System
restores the factory default settings.
Press the button for at least 5 second and then release it. WPS will
disabled/enabled.
Press the button for at least 3 second and then release it. Wireless
will disabled/enabled.
RJ-45 port, for connecting the router to a PC or another network
device.
Power interface, for connecting the power adapter.
Warning:
MG7540 Cable Modem User Manual
Do not press the Reset button unless you want to clear the current settings. The
Reset button is in a small circular hole on the rear panel. If you want to restore the
default settings, please press the Reset button gently for 5 second with a fine needle
inserted into the hole and then release the button. The system reboots and returns to
the factory defaults.
3.2
Hardware Installation
3.2.1 Connecting the Device
Please follow the steps below to connect the device.
Step1
Connect the Cable port of the CM/RG with HFC cable.
Step2
Connect the Eth port of the CM/RG to the network card of the PC via an
Ethernet cable.
Step3
Plug one end of the power adapter to the wall outlet and connect the
other end to the Power port of the CM/RG.
MG7540 Cable Modem User Manual
4.1
PC Network Configuration and Login
PC Network Configuration
Each network interface on the PC should either be configured with a statically defined
IP address and DNS address, or be instructed to automatically obtain an IP address
using the network DHCP server. MG7540 provides a DHCP server on its LAN and it
is recommended to configure your LAN to automatically obtain its IP address and
DNS server IP address.
The configuration principle is identical but should be carried out differently on each
operating system.
The following displays the TCP/IP Properties dialog box on Windows 7.
MG7540 Cable Modem User Manual
Figure 1 IP and DNS
S configuration
TCP/IP configu
uration steps for Windowss 7 are as follows:
Step1
Choose Start > Control Pa
anel > Network Connecttions.
Step2
Rig
ght-click the Ethernet con
nnection icon and choose Properties.
Step3
On the General tab, selectt the Internet Protocol (TCP/IP) component
an
nd click Properties.
MG7540 Cable Modem User Manual
Step4
The
e Internet Protocol (TCP
P/IP) Properties window
w appears.
Step5
Select the Obtain an IP add
dress automatically rad
dio button.
Step6
Select the Obtain DNS serv
ver address automatica
ally radio button.
Step7
Clic
ck OK to save the setting
gs.
4.2
Logg
ging In to the MG7
7540 Cable Mode
em
To log in to the MG7540 cable modem, do as follows:
Step1
Op
pen a Web browser on yo
our computer.
Step2
Entter http://192.168.0.1 (the default IP address of
o the MG550 cable
mo
odem) in the address bar.. The login page appears.
Step3
Entter the user name and th
he password. The defaultt Username is admin
and
d the Password is motorola.
Step4
Clic
ck Login to log in to the M
MG7540 cable Modem.
MG7540 Cable Modem User Manual
Figure 2 Login page
After logging in to the MG7540 cable modem, it will show the CM
C Basic Status info.
click on the Advanced
options you can
n query, configure, and modify
all the settings,
and diagnose
e the system.
10
MG7540 Cable Modem User Manual
Web-B
Based Managem
ment
This chapter describes how to use We
eb-based management of
o the Cable Modem,
which allows you
to configure and con
ntrol all of cable modem
m residential gateway
features and sy
ystem parameters in a usser-friendly GUI.
5.1
Statu
us
Choose Status
s, and the submenus of S
Status are shown as belo
ow.
Figure 3 Submenus of status
5.1.1 Sofftware
Choose Status
s > Software and the follo
owing page appears.
Figure 4 Software pa
age
This page displlays information about the
e hardware version, softw
ware version, MAC
11
MG7540 Cable Modem User Manual
address, cable modem IP address,serial number and CM Certificate status.
5.1.2 Connection
Choose Status > Connection and the following page appears.
12
MG7540 Cable Modem User Manual
13
MG7540 Cable Modem User Manual
Figure 5 Connection information
This page disp
plays information about tthe RF upstream and do
ownstream channels,
including downstream channel frequenccies, upstream channel ID
Ds, and upstream and
downstream sig
gnal power and modulatio
on.
This page also displays IP lease inform
mation, including the curre
ent IP address of the
cable modem, the
t duration of both lease
es, the expiration time of both leases, and the
current system time from the DOCSIS tiimeserver.
The information on this page can be refreshed at any time by
b clicking your web
browser’s Refre
esh button.
5.1.3 Dia
agnostics
Choose Status
s > Diagnostics and the following page appears.
Figure 6 Diagnostic iinformation
Two utilities are
provided for troublleshooting network con
nnectivity: Ping and
Traceroute.
Ping allows you
u to check connectivity be
etween the CM/RG and devices
on the LAN.
14
MG7540 Cable Modem User Manual
Traceroute allo
ows you to map the netw
work path from the CM/R
RG to a public host.
Selecting Trace
eroute from the drop-dow
wn Utility list will present alternate controls for
the traceroute utility:
To run either utility,, make any changes to th
he default parameters
and select Start Test to begin.
The w
window will automatically be refreshed as the
results are disp
played in the Results table
e.
5.1.4 Seccurity
Choose Status
s > Security and the follo
owing page appears.
Figure 7 Security con
nfiguration
Restore Facttory Defaults:
Click this buttton to restore factory deffaults. Note that you will lose
any settings you
may have ch
hanged.
Note that you
u can also change the se
ecurity password from thiis page by entering a
new password in both the New Passw
word and Re-Enter New Password fields, and
the current password
in the Currentt User ID Password field
d. Clicking Save will
change the password.
You do NOT h
have to restore factory de
efaults to change the
password.
15
MG7540 Cable Modem User Manual
5.1.5 Event Log
Choose Status
s > Event Log and the following page appears.
Figure 8 Event Log information
The Event Log
g displays information ab
bout your cable modem's
s connection to your
service provide
er. This information ma
ay be particularly helpfu
ul if you experience
problems with your
connection.
5.2
Basic
c Router
Choose Basic Router and the submenu
us of Basic Router are shown
as below.
Figure 9 Submenus of Basic Router
5.2.1 Settup
Choose Basic Router > Setup , and the following page appears
s.
16
MG7540 Cable Modem User Manual
Figure 10 Setup configuration
Enter the info
ormation from the Requirred Information section as
s indicated:
At this point, the CM/RG is configured
d for basic use. To connec
ct to the Internet, you
must do the following:
1. Power up the CM/RG and wait fo
or it to register with the CMTS
and obtain an
Internet-routa
able IP address
2. Get an IP
P lease from the internal DHCP server for each PC attached to the
CM/RG.
Note that co
ommunication on the LA
AN will work regardless of
o whether the WAN
connection provided
by the cable mo
odem is up. However, yo
ou will not be able to
access the In
nternet until the WAN con
nnection is enabled and has
h an IP address.
Some config
gurations settings are re
etrieved only once from non-volatile storage
when the CM
M/RG first powers up. On
ne such setting is changiing the IPv4 Address
parameters. Any changes to these ssettings will force the CM
M/RG to reset so that
the new conffiguration can be read fro
om non-volatile storage.
When this mandatory reset is required
d, the web interface will notify
as follows:
17
MG7540 Cable Modem User Manual
Figure 11 Reload pa
age
Simply wait for
f the modem to reboot and click on the “Refresh
h” link to re-enter the
web interface
e where you made your la
ast change.
Most configu
uration items may be chan
nged on the fly without a reboot.
5.2.2 DH
HCP
Choose Basic Router > DHCP, and the
e following page appears..
18
MG7540 Cable Modem User Manual
Figure 12 DHCP con
nfiguration
This page allow
ws configuration and statu
us of the optional internal DHCP server for the
LAN.
If you have you
ur own DHCP server servvicing the LAN side (or choose
to “hardcode”
all of your PC’s IP addresses), you can d
disable the internal DHCP
P server by chose the
Disabled.
If yo
ou do this, make sure the
e IP address assigned to the CM/RG is on the
same subnet as the external DHC
CP server (the subne
et mask is always
255.255.255.0)), or you won’t be able tto access the CM/RG fro
om the LAN. The IP
address of the CM/RG can be set from tthe Basic Router Setup page.
You can also set
s the starting IP addre
ess for IP leases available to the LAN, and
change the number of PCs supported on the LAN. In the cas
se above, addresses
19
MG7540 Cable Modem User Manual
192.168.0.2 thrrough 192.168.0.9 can b
be used as hard-coded IP addresses with no
fear of IP address conflict with the DHC
CP pool. Configured WIN
NS server addresses
can also be pas
ssed to CPEs behind the
e CM/RG via DHCP.
5.2.3 DH
HCPv6
Choose Basic Router > DHCPv6 , and the following page appears.
Figure 13 DHCPv6 cconfiguration
e internal DhcpV6 server for the LAN. When
This page alllows configuration of the
modifying the
e System Delegated Preffix, set the System Deleg
gated Prefix first, and
press Save so
s that the system can ca
alculate its LAN Delegate
ed Prefix.
20
MG7540 Cable Modem User Manual
5.2.4 LA
AN IPv6
Choose Basic Router> LAN IPv6 and tthe following page appea
ars.
Figure 14 LAN IPv6 information
This page dis
splays information related
d to IPv6 on the LAN.
5.2.5 DD
DNS
Choose Basic Router > DDNS , and the following page appears
s.
Figure 15 DDNS con
nfiguration
This page is used to configure DDNS
S. Dynamic DNS (DDNS)) allows a dynamic IP
address to be
b aliased to a static, pre
e-defined host name so that the host can be
easily contac
cted by other hosts on the internet even if its IP
I address changes.
21
MG7540 Cable Modem User Manual
The CM/RG supports a dynamic DN
NS client compatible with the Dynamic DNS
service (http://www.dyndns.com/).
To activate th
he DDNS client:
1. Go to the
e Dynamic DNS website and create an account for
f the Dynamic DNS
service.
Yo
ou will create a username and password, and be
e asked to choose a
host name fo
or your server, and the dyynamic DNS domain to which your host will be
assigned.
You
Y will also be asked fo
or your host’s current IP address. This is the
WAN IP address that has been assigned to your CM/RG durin
ng provisioning. (See
WAN IP Address on the Basic Routerr/ Setup web page.)
2. Enter you
ur account information on
n the Basic Router/ DDN
NS web page, enable
the service by
b selecting www.DynDNS.org from the DDNS Se
ervice drop-down list,
and click Sav
ve.
3. The DDN
NS client will notify the D
DDNS service whenever the WAN IP address
changes so that
your chosen host nam
me will be resolved prope
erly by inquiring hosts.
The current status
of the service is sh
hown at the bottom of the
e DDNS web page.
5.2.6 Backup/Restore
Choose Basic Router > Backup/Resto
ore and the following page appears.
Figure 16 Backup/Re
estore setup
nt CM/RG configuration settings to a local PC.
In this page, you can save the curren
en later restore these settings if you need restore a particular
You can the
22
MG7540 Cable Modem User Manual
configuration
n, or to recover from cha
anges you may have made that have had an
undesirable effect.
To back up th
he current configuration, click Backup and follow the
t prompts.
To restore a previous configuration, cclick Browse and use the navigation window to
locate the file.
saving.)
(Usually GatewayS
Settings.bin,
unless yo
ou rename it before
On
nce the file has been lo
ocated, click Restore to restore the settings.
Note that onc
ce the settings are restorred, the device will reboott.
5.3
Adva
anced Router
Choose Advan
nced Router and the submenus of Advanced Router
are shown as
below.
Figure 17 Submenuss of Advanced Router
5.3.1 Op
ptions
Choose Advan
nced Router > Options tto display the following pa
age.
23
MG7540 Cable Modem User Manual
Figure 18 Options co
onfiguration
This page allow
ws you to configure the a
accessible features.To en
nable a feature, click
the appropriate
e check box until it is “cchecked”.
selections, clic
ck on the Save button.
When you arre satisfied with your
These features can be
e modified on the fly
without a system reset.
WAN Blocking prevents your cable mod
dem/router or the devices
s behind it from being
24
MG7540 Cable Modem User Manual
visible from the
e Internet. This makes it difficult for hackers to diiscover your WAN IP
address and launch an attack on your p
private LAN.
IpSec PassThrrough enables a VPN d
device or VPN software located behind your
cable modem/rrouter and running IpSecc to communicate succes
ssfully with endpoints
on the Internet..
PPTP (Point-to
o-Point Tunneling Protoccol) PassThrough enable
es a VPN device or
VPN software located behind your ccable modem/router and running PPTP to
communicate successfully
with endpoints on the Internet.
Remote Confiig Management: When
n enabled, navigate to
t http://‹CM WAN
IPAddress›:808
80/ to administer your C
Cable Modem/Router rem
motely. You can find
your Cable Modem/Router's
WAN IP address on the Basic Setup page.
Multicast :Allow
ws multicast specific trafffic to be passed to and frrom the PCs on your
LAN behind your Cable Modem/Router
UPnP: If you arre running an application that requires UPnP, Enable UPnP.
Primary Network Bridged: Enable or Diisable the feature Pass Through
These MAC
Addresses.
5.3.2 IP Filtering
Choose Advan
nced Router> IP Filtering
g to display the following page.
25
MG7540 Cable Modem User Manual
Figure 19 IP Filtering
g configuration
This page allows you to configure the
e CM/RG to prevent loc
cal PCs from getting
access to the WAN
by specifying those IP addresses that should
d be filtered.
By entering sta
arting and ending IP add
dress ranges, you can configure
which local
PCs are denie
ed access to the WAN. Note that you only nee
ed to enter the LSB
(Least-significa
ant byte) of the IP addresss; the upper bytes of the IP address are set
automatically frrom the CM/RG IP addre
ess. To activate the IP address filter, you must
also check the “enable” box and click S
Save. The enable box allo
ows you to store filter
settings commo
only used but not have th
hem active.
5.3.3 MA
AC Filtering
Choose Advan
nced Router > MAC Filte
ering to display the follow
wing page.
Figure 20 MAC Filterring configuration
This page is us
sed to prevent PCs from ssending outgoing TCP/UD
DP traffic to the WAN
via their MAC address
This is useful fo
or the fact that the MAC a
address of a specific NIC card never changes,
unlike its IP address which can be assigned via DHCP serv
ver or hard-coded to
various address
ses over time.
5.3.4 Porrt Filtering
Choose Advan
nced Router> Port Filterring to display the following page.
26
MG7540 Cable Modem User Manual
Figure 21 Port Filtering configuration
This page is us
sed to prevent PCs from ssending outgoing TCP/UD
DP traffic to the WAN
on specific IP port
p numbers.
By specifying a starting and ending port range, you may determ
mine what TCP/UDP
traffic is allowed out to the WAN on a pe
er-port basis.
Note the specified
port ranges
are blocked forr ALL PCs and this settin
ng is not IP address or MAC address specific.
For instance, iff you would like to blockk all PCs on the private LAN from accessing
HTTP sites (or “web surfing”), you would set the “Start Port” to 80, the “End Port” to
80, the “Protoco
ol” to TCP, check the “En
nabled” box, and click Sav
ve.
5.3.5 Forrwarding
Choose Adv
vanced Router > Forwarrding to display the follow
wing page.
27
MG7540 Cable Modem User Manual
Figure 22 Forwarding
g configuration
This allows forr incoming requests on sspecific port numbers to
o reach web servers,
FTP servers, mail
m servers, etc. so they can be accessible from the public internet. A
table of commo
only used port numbers iss also provided.
Forwarding allo
ows you to run a publiclyy accessible server on th
he LAN by specifying
the mapping off TCP/UDP ports to a loca
al PC
To specify a mapping,
you must enterr the range of port num
mbers that should be
forwarded locally, and the IP address to
o which traffic to those ports
should be sent.
If only a single port specification is desired, enter the same port number in the “start”
and “end” locattions for that IP address.
A table of commonly used
Port numbers is
supplied on the
e page for convenience.
If both external and Local/internal port n
numbers are present, the Local port number is
a mandatory field and the external po
ort number is optional.
If the external port
number is use
ed, the RG will perform a translation from exte
ernal port number to
internal port number.
28
MG7540 Cable Modem User Manual
5.3.6 Porrt Triggers
Choose Advan
nced Router > Port Trigg
gers to display the follow
wing page.
Figure 23 Port Trigge
ers configuration
Port Triggers are similar to Port Forwarding except that they are
e not static ports held
open all the tim
me.
When the CM/RG detects outgoing data on
o a specific IP port
number set in the
t “Trigger Range”, the resulting ports set in the
e “Target Range” are
opened for incoming (or sometimes re
eferred to as bi-directiona
al ports) data.
If no
outgoing traffic
c is detected on the “Trig
gger Range” ports for 10 minutes, the “Target
Range” ports will
w close.
This is a saferr method for opening spe
ecific ports for special
applications (e.g. video conferencing p
programs, interactive gaming, file transfer in
chat programs, etc.) because they arre dynamically triggered and not held open
constantly or erroneously
left open via the router administrattor and exposed for
potential hacke
ers to discover.
5.3.7 RIP
P Setup
Choose Advan
nced Router> RIP Setup
p to display the following page.
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MG7540 Cable Modem User Manual
Figure 24 RIP config
guration
RIP (Router Infformation Protocol) is ussed in WAN networks to identify and use the
best known and
d quickest route to given destination addresses to help reduce network
congestion and
d delays.
NOTE: RIP messaging
will only be sent upstream when running
in Static IP
Addressing mo
ode on the Basic – Setup
p page. You must enable Static IP Addressing
and the set the Wan IP network informa
ation! RIP is normally a function
that is tightly
controlled via th
he ISP.
RIP Authenticattion Keys and IDs are no
ormally held as secret
information from
m the end user to prevent unauthorized RIP settin
ngs.
RIP is a protoco
ol that requires negotiatio
on from both sides of the network (i.e. CM/RG
and CMTS).
The
T ISP would normally sset this up because of the
eir knowledge of their
CMTS settings to match the configuratio
on in the CM/RG.
To enable the CM/RG
to perform RIP, d
do the following (this exa
ample uses BRCMV2
as the RIP Auth
hentication Key and 1 as the Key ID):
1.) To turn on RIP
R MD5 Authentication, ccheck the “Enable” box.
2.) To specify a RIP MD5 Authentication
n Key String, type “BRCM
MV2” for this example.
key name = a string
value to match CMT
TS key name value
3.) To specify a RIP MD5 Auth Key ID, tyype “1”
key number = a number to match the CM
MTS key number value
4.) To change the
t RIP annoucement interval, type in a number in seconds.reporting
interval by defa
ault = 30 seconds
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MG7540 Cable Modem User Manual
5.) To specify a RIP unicast destination IP address, enter the IP address and subnet
mask.
To enable the CMTS for RIPv2 with MD-5 authentication (Cisco uBR example shown
below):
1.) The following steps go through configuring RIPv2 for a Cisco CMTS. The network
number used in this configuration will vary from network to network so use the
network number that matches your set-up.
7223#configure terminal
7223(config)#key chain ubr
7223(config-keychain)#key 1
7223(config-keychain-key)#key-str BRCMV2
7223(config-keychain-key)#exit
7223(config-keychain)#exit
7223(config)#router rip
7223(config-router)#ver 2
7223(config-router)#no validate-update
7223(config-router)#passive-interface cable 2/0
7223(config-router)#network 10.0.0.0
7223(config-router)#exit
7223(config)#inter cable 2/0
7223(config-if)#ip rip receive ver 2
7223(config-if)#ip rip authentication mode md5
7223(config-if)#ip rip authentication key-chain ubr
7223(config-if)#exit
7223(config)#exit
In this example, we have named the key chain ‘ubr’. This was chosen arbitrarily. You
can use any name you like as long as you specify the correct name when specifying
which key chain to use for RIPv2 authentication.
2.) The next step is enable RIP debugging to ensure that the CMTS is receiving and
authenticating messages from the residential gateway.
7223#debug ip rip
RIP protocol debugging is on
31
MG7540 Cable Modem User Manual
7223#term mon
The CMTS is now configured to accept RIPv2 messages. If the CM/RG is registered
on the CMTS, you should see messages that are similar to the message below:
00:28:41: RIP: received packet with MD5 authentication
00:28:41: RIP: received v2 update from 10.24.81.148 on Cable2/0
00:28:41:
10.24.81.0/24 via 10.24.81.148 in 1 hops
The CM/RG
has broadcast that is connected to the network 10.24.81.0/24 through
the interface 10.24.81.148. This information is not very useful to the CMTS because it
already knows that the network 10.24.81.0/24 is connected directly to one of its
interfaces (Cable2/0). It ignores this message and doesn’t add any information to the
IP routing table. Here is the IP routing table after the CMTS has received RIPv2
messages:
7223#sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 10.24.95.17 to network 0.0.0.0
10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
10.24.80.0/24 is directly connected, Cable2/0
10.24.81.0/24 is directly connected, Cable2/0
S*
10.24.95.16/28 is directly connected, FastEthernet0/0
0.0.0.0/0 [1/0] via 10.24.95.17
In the example above, the CM/RG was set up to send RIPv2 messages to the CMTS.
The CMTS was also set up to receive these messages.
5.3.8 DMZ Host
Choose Advanced Router > DMZ Host to display the following page.
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MG7540 Cable Modem User Manual
Figure 25 DMZ Host configuration
DMZ (De-milita
arized Zone) hosting (alsso commonly referred to
o as “Exposed Host”)
allows you to specify the “default” reccipient of WAN traffic that NAT is unable to
translate to a known
local PC.
This ca
an also be described as a computer or small
sub-network th
hat sits between the trussted internal private LAN
N, and the untrusted
public Internet.
You may config
gure one PC to be the D
DMZ host.
This setting is generally used for
PC’s using “pro
oblem” applications that u
use random port numbers
s and do not function
correctly with specific
port triggers or po
ort forwarding setups me
entioned earlier.
If a
specific PC is set
s as a DMZ Host, remem
mber to set this back to “0
0” when finished with
the needed app
plication, since this PC wiill be effectively exposed to the public Internet,
though still prottected from Denial of Serrvice (DoS) attacks via the Firewall.
5.4
Wireless
Choose Wirele
ess and the submenus off Wireless are shown as below.
Figure 26 The subme
enus of Wireless
5.4.1 Basic
Choose Wirele
ess > Basic to display the
e following page.
33
MG7540 Cable Modem User Manual
Figure 27 Basic conffiguration
This page allow
ws you to configure the Primary Wireless Network.
Primary Netwo
ork:
Enable or Disable the primary network. Guest networks may still be operational when
the primary nettwork is disabled.
Network Name
e (SSID):
Sets the Netwo
ork Name (also known ass SSID) of the primary ne
etwork. This is a 1-32
ASCII characte
er string.
WPA-PSK / WP
PA2-PSK Security Key / Password:
Motorola assigned your device a uniqu
ue Security Key (or Pass
sword) at the factory.
This security ke
ey is displayed here.
If you want, you can change the securitty key by entering the ne
ew key here and then
clicking the Sav
ve button. Channel:
Selects the con
ntrol channel for AP operration. The list of available channels depends
on the selected
d country as presented in.
Bandwidth:
802.11b/g chan
nnels are only 20 MHz w
wide, but 802.11n chann
nels may be 40 MHz
wide. There are
e some backward compa
atibility issues with 40 MHz channels though.
34
MG7540 Cable Modem User Manual
These issues are
a more likely to be enccountered in the 2.4 GHz
z band where legacy
(802.11b/g) dev
vices may be operating u
using 20 MHz channels.
Sideband for Control
Channel (40 MH
Hz only):
Whether the 20 MHz control channel uses the upper or lowerr half of the 40 MHz
channel. Chan
nges to this setting ma
ay change the control channel
setting. For
example (in the
e 2.4 GHz band), if the u
upper 20 MHz is selected
d as the sideband for
the control cha
annel, then the lowest con
ntrol channel available would
be channel 5 to
allow the lowerr 20 MHz for data.
5.4.2 Ra
adio
Choose Wirele
ess > Radio to display the
e following page.
Figure 28 Radio configuration
Radio Enable//Disable:
Allows the wire
eless interface to be enab
bled and disabled.
5.4.3 WP
PS_RADIUS_W
WEP
Choose Wirele
ess > WPS_RADIUS_WE
EP to display the following
g page.
35
MG7540 Cable Modem User Manual
Figure 29 WPS_RAD
DIUS_WEP configuration
This page allow
ws you to configure the W
WPS_RADIUS_WEP
36
MG7540 Cable Modem User Manual
WPS Enable/Disable:
WPS stands for Wi-Fi Protected Setup. WPS provides two methods to automatically
distribute wireless keys to clients that support this feature, described below. For the
record, as of July, 2015, Apple devices did not support WPS.
WPS Client PIN Method:
On your client device, run a utility to generate a WPS PIN.
Copy the PIN that the client generates and enter it here, then press the Save button.
Once this process is complete, your cable modem/router will display the results, or it
will time out after about two minutes.
Note that this method will change the default SSID and key for your network.
WPA:
Wi-Fi Protected Access is a slightly older and less secure algorithm for securing a
wireless network. This is the Enterprise variant that requires configuration of a
RADIUS server.
WPA-PSK:
The Pre-Shared Key mode of the WPA algorithm which does not require use of a
RADIUS server. This is also known as WPA Personal. WPA and WPA-PSK cannot be
used at the same time.
WPA2:
An advanced form of WPA that is more secure. This is the Enterprise mode of WPA2
which requires the use of a RADIUS server. WPA2 and WPA may be used at the
same time to provide backward compatibility with devices that do not support WPA2.
WPA2-PSK:
The Pre-Shared Key mode of WPA2, also known as WPA2 Personal.WPA2 and
WPA2-PSK cannot be used at the same time. WPA2-PSK and WPA-PSK may be
used at the same time to provide backward compatibility with devices that do not
support WPA2.
Encryption:
Select the desired encryption protocol for your network. The default is TKIP+AES.
RADIUS:
Disable WPA-PSK / WPA2-PSK and Enable WPA / WPA2 to un-gray out RADIUS
settings.
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MG7540 Cable Modem User Manual
802.11n Mode:
Set this param
meter to OFF to force 80
02.11g mode (required to
o enable WEP). The
default value is
s Auto.
WEP Encryptio
on:
Disabled and grayed
out by default. If yyou need WEP Encryptio
on, set 802.11n Mode
to OFF to un-grray out, and then Enable this parameter.
Network Key 1 thru Network Key 4:
When WEP encryption is enabled, ssets the static WEP keys.
Enter 5 ASCII
characters or 10 hexadecimal digits for a 64-bit key. Enter 13 AS
SCII characters or 26
hexadecimal digits for a 128-bit key.
Current Netwo
ork Key:
This selects the
e Network Key used for trransmissions. Select 1 - 4 (default 1).
PassPhrase:
Enter a 10 or 26 character string, then press Generate WEP Keys to generate
Network Keys 1 - 4.
5.4.4 Gu
uest
e following page.
Choose Wirele
ess > Guest to display the
Figure 30 Guest configuration
38
MG7540 Cable Modem User Manual
The page allows you to configure a secondary guest network on the wireless
interface.
Select Guest Network:
This is a pull down of Moto_Guest0 to Moto_Guest7.
Guest Network Status:
Enable or Disable the Guest Network selected above.
Guest Network Name (SSID):
Either accept the default Network Name, or change the name by entering the new
name here, and clicking the Save button.
WPA-PSK / WPA2-PSK Security Key / Password:
Enter a key here, and click the Save button to save it.
5.4.5 Access
Choose Wireless > Access to display the following page.
39
MG7540 Cable Modem User Manual
Figure 31 Access co
onfiguration
This page allo
ows you to control which
h wireless clients can access
your wireless
network. It also
o provides information about wireless clients connected to your access
point.
Connected Cliients:
A list of conne
ected wireless clients. W
When a client connects (associates) to the
network, it is ad
dded to the list; when a cclient leaves (disassociate
es) from the network,
it is removed frrom the list. For each clie
ent, the age (in seconds), estimated average
40
MG7540 Cable Modem User Manual
receive signal strength (in dBm), IP address, and host name are presented. The age
is the amount of time elapsed since data was transmitted to or received from the
client.
5.4.6 Advanced
Choose Wireless > Advanced to display the following page.
41
MG7540 Cable Modem User Manual
Figure 32 Advanced configuration
This page allow
ws you to configure advan
nced wireless settings.
Output Power:
Control the range of the AP by adjusting
g the radio output power.
42
MG7540 Cable Modem User Manual
OBSS Coexistence:
OBSS coexistence refers to the ability of your device to support 20 MHz clients within
40 MHz channels. It also allows your device to reduce interference from nearby 20
MHz devices that are interfering with part of your device's 40 MHz channel.
Hide SSID (Closed Network):
When this feature is enabled, the SSID is not broadcast. Therefore, only devices that
already know the SSID will be able to connect.
Mode Required:
Select None, HT or ERP, where HT and ERP refer to High Throughput and Extended
Rate PHY, respectively. These settings determine how your network interacts with
older (802.11b/g) and newer (802.11n) wireless clients. Most users will leave this at
the default setting of None.
Isolate Client:
When this feature is enabled, wireless clients are isolated from your wired network
and from each other. They can only access the Internet, but not any servers or other
devices on your network.
54g™ Mode:
Sets the network mode for legacy 802.11g & 802.11b networks. To un-gray out this
selection, under the 2.4GHz tab in WPS_RADIUS_WEP, Disable 802.11n Mode.
Choices are 54g Auto, 54g only, 54g Performance, 54g LRS, and 802.11b Only. 54g
Auto accepts 54g, 802.11g, and 802.11b clients, but optimizes performance based on
the type of clients connected. 54g Performance accepts only 54g™ clients and
provides the highest throughout; nearby 802.11b networks may have degraded
performance. 54g LRS interoperates with the widest variety of 54g™, 802.11g, and
802.11b clients. 80211b accepts only 802.11b clients.
Xpress Technology:
Enable Broadcom proprietary method of block frame acknowledgement for 802.11g
frames. This feature may improve throughput, but may cause problems.
Afterburner Technology
This feature removes the need for the acknowledgement of data frames. It may
improve throughput, but may cause problems.
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MG7540 Cable Modem User Manual
802.11n Protection:
802.11n Protection protects legacy 802.11b&g devices that are within range of your
cable modem/router. This feature is enabled (Auto) by default.
In some environments with no legacy devices, you may improve performance by
disabling this feature.
Basic Rate Set:
Determines which rates are advertised as “basic” rates.
Default uses the driver
defaults. Sets all available rates as basic rates.
Multicast Rate:
This is the rate at which you send out multicast packets to stations. Multicast packets
are not acknowledged.
NPHY Rate:
Choose 802.11n rate to be applied to all unicast packets.
Legacy Rate:
“N” mode must be off on the “radio” webpage for this control to be active. When
active the user can force the rate in which the AP will operate.
Beacon Interval:
Sets the beacon interval in milliseconds for the AP.
The default is 100, which is fine
for nearly all applications.
DTIM Interval:
Sets the wakeup interval for clients in power-save mode. When a client is running in
power save mode, lower values provide higher performance but result in decreased
client battery life, while higher values provide lower performance but result in
increased client battery life.
Fragmentation Threshold:
Sets the fragmentation threshold. Packets exceeding this threshold will be
fragmented into packets no larger than the threshold before packet transmission.
RTS Threshold:
Sets the RTS threshold.
Packets exceeding this threshold will cause the AP to
perform an RTS/CTS exchange to reserve the wireless medium before packet
transmission.
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MG7540 Cable Modem User Manual
Wireless Multiicast Forwarding (WMF):
Multicast involv
ves sending the same pacckets to two or more endp
points, for example of
a video stream.
5.4.7 WM
MM
Choose Wirele
ess > WMM to display the
e following page.
45
MG7540 Cable Modem User Manual
Figure 33 WMM configuration
This page allows you to configure WiFi Multi-Media (WMM). WMM is an
implementation of Quality of Service (Qos) which is defined by the IEEE standard
802.11e.
WMM Support:
Sets WMM support. Choices are Auto, On, or Off. If enabled (Auto or On), the WME
Information Element is included in beacon frame.
No-Acknowledgement:
Sets No-Acknowledgement support. Choices are On or Off. When enabled,
acknowledgments for data are not transmitted.
Power Save Support:
Sets Power Save support. Choices are On or Off. When Power Save is enabled, the
AP queues packets for STAs that are in power-save mode. Queued packets are
transmitted when the STA notifies AP that it has left power-save mode.
EDCA AP Parameters:
Specifies the transmit parameters for traffic transmitted from the AP to the STA for the
four Access Categories: Best Effort (AC_BE), Background (AC_BK), Video (AC_VI),
and Voice (AC_VO). Transmit parameters include Contention Window (CWmin and
CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and Transmit
Opportunity Limit (TXOP Limit).
There are also two AP-specific settings: Admission Control and Discard Oldest First.
Admission control specifies if admission control is enforced for the Access Categories.
Discard Oldest First specifies the discard policy for the queues. On discards the
oldest first; Off discards the newest first.
EDCA STA Parameters:
Specifies the transmit parameters for traffic transmitted from the STA to the AP for the
four Access Categories: Best Effort (AC_BE), Background (AC_BK), Video (AC_VI),
and Voice (AC_VO). Transmit parameters include Contention Window (CWmin and
CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and Transmit
Opportunity Limit (TXOP Limit).
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MG7540 Cable Modem User Manual
5.4.8 Sca
an/Bridging
Choose Wirele
ess > Scan/Bridging to d
display the following page
e.
Figure 34 Scan/Bridg
ging configuration
This page allow
ws you to configure wirele
ess bridging, which is als
so known as Wireless
Distribution Sy
ystem (WDS). Bridging a
allows you connect multtiple wireless access
points togetherr to form a single networkk using wireless point-to-p
point links.
Wireless Bridg
ging:
This setting ena
ables or disables wirelesss bridging.
Remote Bridge
es:
Table of remotte bridge MAC addresse
es authorized to establis
sh a wireless bridge.
Up to 4 remote
e bridges may be connectted. Typically, you will als
so have to enter your
AP’s MAC addrress (see section 0) on th
he remote bridge, too.
5.5
Prote
ection & Parentall Control
Choose Protec
ction & Parental Controll and the submenus of Prrotection & Parental
Control are shown as below.
47
MG7540 Cable Modem User Manual
Figure 35 submenus of Protection & Pa
arental Control
5.5.1 Firrewall Basic
Choose Protec
ction & Parental Contrrol> Firewall Basic to display
the following
page.
Figure 36 Firew
wall Basic configuration
This page is used to block or exclusivvely allow different types of data through the
he WAN to the LAN.
CM/RG from th
The “low” settin
ng does not block any se
ervices/ports, however it does protect against
invalid packets and well known attacks. The “medium” setting will cause the firewall to
drop a packet unless
it is on a specific port of allowed services; the allowed services
are listed on th
he same page. The “hig
gh” setting is similar to “medium”,
“
but allows
access to even
n fewer services. The “off”” setting allows all traffic to
t pass.
48
MG7540 Cable Modem User Manual
Block Fragmen
nted IP packets prevent alll fragmented IP packets from
passing through
the firewall.
Port
P Scan Detection deteccts and blocks port scan activity
originating on
both the LAN and WAN. IP Flood D
Detection detects and blocks
packet floods
originating on both
the LAN and WAN. The Save button must be
b clicked in order to
activate any off the checkbox items. All of these settings can be
e activated on-the-fly
without a CM/R
RG reboot.
5.5.2 Event Log
Choose Protec
ction & Parental Controll >Firewall Event Log to
o display the following
page.
Figure 37 Firewall Evvent Log configuration
Configure the router
to log a record of events to a local Syslog server on your LAN,
and/or set up email
alerts to warn of the
e events. First, select the events that you want
logged and/or you
y want to be warned about. Second, enter the address
of your local
Syslog server, if you have one. Third, en
nter the email address an
nd SMTP information
where you wan
nt warnings to be sent, if applicable. Finally, click Save for the settings
to take effect. Note
that you can view tthe most recent entries of
o the log information
you have selec
cted at the bottom of the p
page.
49
MG7540 Cable Modem User Manual
5.5.3 Parrental Control
Choose Protec
ction & Parental Contro
ol > Parental Control to display the following
page.
Figure 38 Parental C
Control configuration
ets you define lists of blocked or allowed
Parental Contrrol: Parental Control le
addresses. If you
y define Blocked addre
esses for particular devic
ces on your network,
those devices can reach all websites e
except the Blocked addrresses. If you define
Allowed Addres
sses for particular device
es on your network, thos
se devices can reach
only the Allowe
ed Addresses.
List of Blocked Addresses: Enter the MAC Address of the devic
ce whose access you
want to block to
o a particular site. (Checkk the user documentation
n for the device if you
need help finding its MAC Address). T
Then enter the URL of the web site whose
access you want to block. Next, if you w
want to block access only
y during certain times
enter the days and start and end timess of the blocking. Next, enter
the Protocols to
block (choose both
if you're not sure). Fiinally, select Enable and click Save to activate
50
MG7540 Cable Modem User Manual
the entry.
Note that you can
c Disable the entry tem
mporarily if you may want to re-Enable it later.
List of Allowed Addresses: Enter the M
MAC Address of the devic
ce you want to allow
access to a particular site. (Check the u
user documentation for th
he device if you need
help finding its MAC Address). Then entter the URL of the web site whose access you
want to allow. Next, if you want to allow
w access only during ce
ertain times enter the
days and startt and end times of the access. Next, enter the
e Protocols to allow
(choose both iff you're not sure). Finallyy, select Enable and click
k Save to activate the
entry.
Note that you can
c Disable the entry tem
mporarily if you may want to re-Enable it later.
5.6
VPN
Choose VPN and the submenus of VPN
N are shown as below.
Figure 39 Submenuss of VPN
5.6.1 IPS
Sec
Choose VPN > IPSec to display the follo
owing page.
51
MG7540 Cable Modem User Manual
Figure 40 IPSec configuration
This page will show
the status of configu
ured tunnels.
Tunnel:
This is a pull-down list of VPN Names d
defined below. Select the
e specific VPN tunnel
to configure.
Name:
Enter a VPN na
ame and click Add New T
Tunnel.
5.6.2 L2TP/PPTP
Choose VPN > L2TP/PPTP to display th
he page below.
52
MG7540 Cable Modem User Manual
Figure 41 L2TP/PPT
TP configuration
This page allow
ws configuration of L2TP and PPTP server options
s.
5.6.3 Event Log
Choose VPN > Event Log to display the
e following page.
53
MG7540 Cable Modem User Manual
Figure 42 Event Log information
This page allow
ws you to view the VPN E
Event Log.
5.7
Logo
out
Choose Logou
ut to logout Account and tthe following page will be
e shown after logout.
Figure 43 The logoutt page
54
MG7540 Cable Modem User Manual
Q&A
(1)
Q: Why all the indicators are off?
A: Check the following:
The connection between the power adaptor and the power socket.
The status of the power switch.
(2)
Q: Why the Ethernet indicator is off?
A: Check the following:
The connection between the Cable Modem and your computer, hub,
or switch.
The running status of your PC, hub, or switch.
(3)
Q: Why the ONLINE indicator is off?
A: Check CM DS/US LED is on. Check the connection between the Cable
Line and the wall HFC.
Apply customer :
Name: MTRLC LLC
Address: PO Box 121147 Boston, MA 02112-1147
Contact Person: Andy Pollock
Title: Director of Hardware Engineering
Telephone: 6177530663
Fax: 617-423-1075
For applicable power supplies :
1, US: S24B72-120A200-C4
Brand : Shenzhen Gongjin Electronics Co., Ltd
55
MG7540 Cable Modem User Manual
FCC statement
Warning: Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
NOTE: 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 or more 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 RF Radiation Exposure Statement Caution: To maintain
compliance with the FCC’s RF exposure guidelines, place the
product at least 20cm from nearby persons.”
“The device must not be co-located or operating in conjunction with any other antenna
or transmitter.”
5 GHz devices only
High power radars are allocated as primary users of the 5.25 to 5.35 GHz and 5.65
to 5.85 GHz bands. These radar stations can cause interference with and/or damage
this device. No configuration controls are provided for this wireless equipment allowing
any change in the frequency of operations outside the FCC grant of authorization for
US operation according to Part 15.407 of the FCC rules.
56

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Title                           : Microsoft Word - Cable Modem User Manual v1 0_MG7540_--20160226PDF
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Author                          : Administrator

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