MotoTrbo IP Site Connect For Dummies Moto Trbo
MotoTrbo IP site connect for Dummies MotoTrbo IP site connect for Dummies
User Manual: MotoTrbo IP site connect for Dummies
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MOTORBO IP Site Connect For Dummies PH17/11/2011 Content Content............................................................................ 2 Introduction ..................................................................... 3 IP Network Requirements ............................................... 3 Bandwidth Calculations ................................................... 4 Wireless Broadband and MOTOTRBO ........................... 7 MOTOTRBO and ADSL (no VPN) ................................ 13 MOTOTRBO and ADSL (with VPN) .............................. 16 Further reading.............................................................. 18 Page 2 PH17/11/2011 Introduction This document is an attempt to remove all the waffle and try to give you the basic understanding to set up a basic MOTOTRBO™ IP Site Connect system. The system may however still need some tweaking regarding RSSI levels, delays and beacon lengths once operating. For more in-depth information, refer to Motorola’s IP-Site-System-Integration document and System Planner. The purpose of this document is however, to get the basic system running first. IP Network Requirements The IP backbone network can be a dedicated network or an internet connection provided by an Internet Service Provider (ISP). ISPs provide a range of technologies such as dial-up; DSL (typically ADSL); Cable Modem; broadband wireless access; ISDN; Frame Relay; Satellite etc. The connection cannot use a dial-up connection (due to small bandwidth) or Satellite (due to large delay). The ideal end-to-end system delay must be less than 254 milliseconds. Sufficient bandwidth must be made available by the IP Network and the packet loss; latency and jitter must be within the limits. Calculate the minimum system bandwidth required using the below guide and if using a device like ADSL you will need a guaranteed quality of service connection from your ISP (Table 1). The master repeater requires a static IP address. Peer repeaters can use a dynamic IP address. A defined UDP port must be opened on all devices across the IP network which is responsible for routing (e.g. ADSL modems; routers etc.) or firewall protection. The router and/or firewall’s user manual will give further guidance on this. If the Master repeater is connected to the IP Site Connect network via a router or (ADSL modem), the internet service provider or network administrator has to allocate a static IP address to the WAN port of that router/modem. A static IP address on the internet is expensive and one way to solve this is to use VPN to connect the sites – some routers have VPN built-in. When a Peer device registers with the Master repeater, the return IP Address and UDP Port of that Peer device is supplied as part of the link establishment process. This IP Address and UDP Port must then be made available by the IP Network to all other IP Site connect devices on the IP Site Connect System. The IP Network must not use a Proxy server which redirects a user to a login page before connecting to the internet. We have found that using fixed (static) IP addresses is easier than using dynamic addresses (DHCP) due to the reduced complexity of configuration. Always design the system so that there is a minimum of one unmanaged Ethernet (LAN) port to connect the repeater to the broadband, ADSL or other connectivity devices, this allows for easy connection of a laptop to service the equipment (such as setting up the connected devices IP’s and pinging the devices), and will safeguard unnecessary plugging in and out of patch cables and the outside chance of forgetting to reconnect or worse still damage the patch cable and or connectors. Please note that if connected via an ISP or using a VPN, then a managed router is mandatory. Page 3 PH17/11/2011 Bandwidth Calculations The following examples show the bandwidth calculation and values for a standard IP connection with no VPN. BW VC = 15 kbps = Bandwidth required to support Wide Area Voice or Data (per slot) BW LM = 6 kbps = Bandwidth required to support Link Management BW IR = 3 kbps = Bandwidth required to support Master Messaging BW RD = 55 kbps = Bandwidth required to support RDAC1 commands Example 1: Master & 4 Peer Repeaters with both slots linked with no RDAC1 Number of Wide Area Channel Peers2 for Slot 1 4 BW VC 15kbps 2 Number of Wide Area Channel Peers for Slot 2 4 BW VC 15kbps 2 Total Number of IP Site Connect Peers 4 BW LM 6kbps 2 If Master, Total Number of IP Site Connect Peers 4 BW IR 3kbps 1 RDAC Traffic 0 BW RD 55kbps Required Minimum & Guaranteed Uplink/Downlink Bandwidth 60kbps 60kbps 24kbps 12kbps 0kbps 156kbps Example 2: Master & 4 Peer Repeaters with both slots linked on two sites, slot 2 linked on three sites and with RDAC1 Number of Wide Area Channel Peers2 for Slot 1 2 BW VC 15kbps 30kbps Number of Wide Area Channel Peers2 for Slot 2 3 BW VC 15kbps 45kbps 2 Total Number of IP Site Connect Peers 5 BW LM 6kbps 30kbps 2 If Master, Total Number of IP Site Connect Peers 5 BW IR 3kbps 15kbps RDAC1 Traffic 1 BW RD 55kbps 55kbps Required Minimum & Guaranteed Uplink/Downlink Bandwidth 175kbps Page 4 PH17/11/2011 Using VPN adds some overhead (i.e. extra bandwidth needed) to maintain the connection and to support encryption. BW VC = 23 kbps = Bandwidth required to support Wide Area Voice or Data (per slot) BW LM = 5 kbps = Bandwidth required to support Link Management BW IR = 4 kbps = Bandwidth required to support Master Messaging BW RD = 64 kbps = Bandwidth required to support RDAC1 commands Example 3: Master & 4 Peer Repeaters with all time slots activated for interconnect with no RDAC1 Number of Wide Area Channel Peers2 for Slot 1 4 BW VC 23kbps 2 Number of Wide Area Channel Peers for Slot 2 4 BW VC 23kbps 2 Total Number of IP Site Connect Peers 4 BW LM 5kbps 2 If Master, Total Number of IP Site Connect Peers 4 BW IR 4kbps 1 RDAC Traffic 0 BW RD 64kbps Required Minimum & Guaranteed Uplink/Downlink Bandwidth 92kbps 92kbps 20kbps 16kbps 0kbps 220kbps Example 4: Master & 4 Peer Repeaters with selected time slots activated 2 * 1 WAC3 & 3 * 2 WAC3 for interconnect with RDAC1 (Figure 1) Number of Wide Area Channel Peers2 for Slot 1 2 BW VC 23kbps Number of Wide Area Channel Peers2 for Slot 2 3 BW VC 23kbps 2 Total Number of IP Site Connect Peers 5 BW LM 5kbps 2 If Master, Total Number of IP Site Connect Peers 5 BW IR 4kbps RDAC1 Traffic 1 BW RD 64kbps Required Minimum & Guaranteed Uplink/Downlink Bandwidth 1 2 3 4 46kbps 69kbps 25kbps 20kbps 64kbps 224kbps RDAC is an optional MOTOTRBO Repeater Diagnostics and Control application Peer does not include self. WAC is Wide Area Coverage LC is local; no link slots selected Note: The above tables with automated calculation in Excel, are included on the ARD CPS disk, and are available for downloaded from the ARD download site. Page 5 PH17/11/2011 Figure 1 Page 6 PH17/11/2011 Wireless Broadband and MOTOTRBO It is possible to provide IP connectivity between sites using a Motorola Point to Point Wireless Broadband link. The below drawing and screenshots show a three site IP Site Connected system using such a broadband connection (the Motorola PTP300). Connectivity between the two devices is buffered by a simple Ethernet Unmanaged Switch. B A Site 2 Site 3 Site 1 2 is as follows: The IP address configuration of the aboveFigure devices Device Master PTP300 Peer 1 PTP300 A PTP300 B Peer 2 PTP300 ID 1 2 3 Radio Radio IP 192.168.10.1 N/A 192.168.10.1 N/A N/A 192.168.10.1 N/A Master IP 0.0.0.0.0 N/A 196.168.4.101 N/A N/A 196.168.4.101 N/A Ethernet IP 196.168.4.101 196.168.4.200 196.168.4.11 196.168.4.201 196.168.4.202 196.168.4.12 196.168.4.203 Both Gateway IP 192.168.4.254 192.168.4.254 192.168.4.254 192.168.4.254 192.168.4.254 192.168.4.254 192.168.4.254 DHCP Radio UDP Port = 50000 NOTE: The IP addresses in the DR3000 and the PTP300 example starting with 196 are routable (public); you should consider changing these to something starting with 10 or 192. The same goes for the other diagrams. Page 7 PH17/11/2011 The below screenshots show the PTP300 configuration settings Site 1 PTP300 configuration settings Figure 3 Site 2 PTP300 configuration settings Figure 4 Page 8 PH17/11/2011 Site 2B PTP300 configuration settings Figure 5 Site 3 PTP300 configuration settings Figure 6 Page 9 PH17/11/2011 Master repeater CPS settings Figure 7 Figure 8 Page 10 PH17/11/2011 Peer 1 repeater CPS settings Figure 9 Figure 10 Page 11 PH17/11/2011 Peer 2 CPS settings Figure 11 Figure 12 Page 12 PH17/11/2011 MOTOTRBO and ADSL (no VPN) Another way of providing IP Site Connect service across sites, which (in some cases) may not have microwave (wireless broadband) connectivity, is to use ADSL. In order for such a system to work, the WAN port of the router/modem at the Master site must have a static IP address. This static IP address is allocated by the internet service provider for which there is an additional (large) monthly fee. Since the majority of bandwidth usage will be outbound, the ISP has to configure the service for high upload rate - in most cases it is the other way around. Most ADSL connections are designed for users to browse the web and download emails thus the majority of the bandwidth will be consumed by downloading videos (Youtube) and pictures. Figure 13 The above Router has been configured to provide 6,9MBps downstream and only 733kbps upstream. In a MOTOTRBO network, consisting of three repeaters, the upstream will be around 80kbps and the downstream around 16kbps. Page 13 PH17/11/2011 The Internet via WAN Site 1 Site 2 Site 3 Figure 14 Radio Device Master ID Radio IP Master IP 1 192.168.10.1 0.0.0.0.0 ADSL Master Router Peer 1 2 N/A N/A 192.168.10.1 84.59.32.13 N/A N/A 192.168.10.1 84.59.32.13 N/A N/A ADSL Router Peer 2 Both 3 ADSL Router LAN IP 196.168.2.110 196.168.2.1 1 Assigned 3 196.168.2.1 1 Assigned 3 196.168.2.1 Router Gateway IP DHCP WAN IP 192.168.2.1 N/A 1 84.59.32.13 Assigned 3 N/A Assigned 2 Assigned Assigned 3 N/A Assigned 2 Assigned 84.59.32.1 1 2 2 Radio UDP Port = 50000 1 Assigned by ISP (Fixed) 2 Assigned by ISP (DHCP) 3 Assigned by Local Router (DHCP) In the above diagram, the repeaters are connected to the internet via ADSL modems. A typical ADSL modem (router) is a sophisticated device that connects to the Internet Service Provider using ADSL and provides connectivity for several computers via Ethernet and WiFi. The ADSL router then transfers IP data between the computers and the internet. The computers connected to the router can connect to the internet via the router. On top of that, the router provides some degree of protection to the computers against attackers. In the MOTOTRBO radio network, the repeaters would connect to the internet (WAN) in the same way a computer would despite being a fairly simple device. Page 14 PH17/11/2011 Figure 15 The above screenshot shows how the UDP port would be mapped in the ADSL Router. The above setting says that any UDP port 50000 traffic that arrives on the WAN, must be forwarded to IP address 192.168.2.110 (i.e. the Master DR3000). Page 15 PH17/11/2011 MOTOTRBO and ADSL (with VPN) One way of providing IP Site Connect service across sites which may not have microwave connectivity, is to use ADSL. To overcome the requirement for a static WAN IP address at the Master site, is to use VPN (Virtual Private Networking). VPN offers an additional benefit in that IP packets transferred across the internet are encrypted thus providing the customer additional communications security. As the name suggests, VPN creates a virtual private network on the internet. This makes all the sites seem as if they are on the same network. Most importantly, the VPN also eliminates the need for a static IP WAN address at the Master site. The Master repeater will still need to be configured with a static IP address on the LAN but this is fairly simple. The VPN however will create additional consumption as the various routers in the network maintain the connection. Figure 16 Page 16 PH17/11/2011 The Internet using VPN via WAN Site 1 Site 2 Site 3 Figure 17 Radio Device Master Radio IP Master IP 1 192.168.10.1 0.0.0.0.0 196.168.2.110 192.168.2.1 N/A N/A 196.168.2.1 Assigned 2 192.168.10.1 196.168.2.110 ADSL Router Peer 2 N/A 3 N/A 192.168.10.1 196.168.2.110 ADSL Router N/A N/A LAN IP Router ID ADSL Master Router Peer 1 Both Assigned Gateway IP 1 196.168.2.1 Assigned 1 196.168.2.1 DHCP WAN IP 1 Assigned Assigned 1 N/A Assigned 1 Assigned Assigned 1 N/A Assigned 1 Assigned N/A 1 1 1 Radio UDP Port = 50000 1 Assigned by ISP (DHCP) 2 Assigned by Local Router (DHCP) Page 17 PH17/11/2011 Further reading MOTOTRBO System Planner MOTOTRBO IP Site Connect Integration Guide TCP/IP For Dummies ISBN: 978-0-470-45060-4 http://bit.ly/tYzb12 Networking For Dummies ISBN: 978-0-470-53405-2 http://bit.ly/tEeJnn Bandwidth link calculation for MotoTrbo: on http://download.ard.co.za & on CPS DVD Authored and compiled by Philip Hime (Alcom Radio Distributors) in collaboration with Wayne Holmes (Motorola Solutions) Page 18 PH17/11/2011
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