Comtech EF Data CDM-570 - Router Modes; Figure G-2. Router Point-To-Point Working Mode

CDM-570/570L Satellite Modem with Optional IP Module Revision 12
Appendix G MN/CDM570L.IOM
G–6
attached to their local Ethernet interfaces and will only send packets over the satellite that are not
destined for the locally attached devices.
G.3.4 Router Modes
G.3.4.1 Router Mode – Point-to-Point
Figure G-2. Router Point-to-Point Working Mode
Figure G-2 shows a 256 k
bps Point-to-Point duplex link in Router Mode. For this case:
• Each side of the link has different IP subnets – 10.10.0.0/16 and 10.20.0.0/16.
• Each CDM-570/L-IP has a static route defined for the distant CDM-570/L-IP subnet.
• The Next Hop is automatically defined as Point-to-Point, and there are no HDLC
addresses to configure; all that is required to send traffic between the PCs on each subnet
is to define the local CDM-570/L-IP as the PC default gateway.
• The CDM-570/L-IPs will only pass traffic over the satellite link by the ToSat routes
configured in the Route Table.