Mn/Cdm570L.iom - Comtech EF Data CDM-570L Installation And Operation Manual

CDM-570L Satellite Modem with IP Module
remote CDM-IPs have static routes to the hub with the next Hop being HDLC 0x01. The
Hub RX only CDM-IP 2 has a default route (ToEth) to Hub CDM-IP 1 because all
outbound traffic will go through CDM-IP 1.
Additionally, HDLC addresses can be used to select or filter multicast traffic on the hub
outbound common carrier. Hub CDM-IP 1 has two multicast routes defined with two
Next Hop HDLC addresses, 0x10 and 0x11. Remote CDM-IP 2 has RX HDLC Address
0x10 enabled to receive one of the multicast streams. Remote CDM-IP 3 has RX HDLC
Addresses 0x10 and 0x11 enabled to receive both of the multicast streams.
Additonal remote sites can be added through a dedicated RX Only CDM-IP at the hub for
each remote.
PC
IP 10.10.1.100/16
GW 10.10.1.1
Static Routes
IP Dest
10.20.0.0/16
10.30.0.0/16
RX HDLC Addresses - 0x01
Figure ?. Router Mode, Partial Mesh, 1½ Hop Diagram
Full or partial "Mesh Network" Configuration – The "Star Network" configuration
works for a "hub-centric" network, where all traffic is either coming to, or from, one
central hub. There are several ways to send traffic between remote sites.
Satellite dish
RX
TX
RX
Hub CDM-IP 1
(efi0) 10.10.1.1/16
Next Hop Type
0x02 ToSat
0x03 ToSat
Hub CDM-IP 2 (RX Only)
(efi0) 10.10.1.2/16
Static Routes
IP Dest Next Hop Type
0.0.0.0/0 10.10.1.1 ToEth
RX HDLC Addresses - 0x01
Satellite
Remote B, CDM-IP 4
(efi0) 10.30.1.1/16
Static Routes
IP Dest Next Hop
10.10.0.0/16
10.20.0.0/16
RX HDLC Addresses - 0x03
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MN/CDM570L.IOM

Satellite dish
RX
Remote A, CDM-IP 3
(efi0) 10.20.1.1/16
Static Routes
IP Dest Next Hop
10.10.0.0/16 0x01
10.30.0.0/16 0x03
RX HDLC Addresses - 0x02
Satellite dish
RX
TX
RX
Type
0x01 ToSat
0x01 ToSat
Remote B, CDM-IP 5 (RX Only)
(efi0) 10.30.1.2/16
Static Routes
IP Dest Next Hop Type
0.0.0.0/0 10.30.1.1 ToEth
RX HDLC Addresses - 0x03
PC
IP 10.20.1.100/16
GW 10.20.1.1
TX
Type
ToSat
ToSat
PC
IP 10.30.1.100/16
GW 10.30.1.1