Router Mode Troubleshooting - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Appendix F
F.5.2 Router Mode Troubleshooting
Use the following troubleshooting steps if unable to successfully send traffic in Router Mode.
Scenario Problem
1 No Ping response from the
locally connected PC to the
CDM-IP Ethernet port.
ICMP response is 'Request
timed out'.
2 No Ping response from the
locally connected PC to the
remote CDM-IP or remote
PC.
ICMP response is 'Request
timed out'.
3 No Ping response from PC 1
to PC 2 or vice versa.
ICMP response is 'Reply
from 172.XXX.10.1 -
Destination net
unreachable'.

Router Mode Troubleshooting

Action
a) Verify correct IP address/subnet on PC and CDM-IP.
b) Verify Ethernet connection – cables, hub, etc. PC, hub, and
CDM-IP should have Ethernet activity LED lit.
Note: A PC must be connected to the CDM-IP using a hub,
switch or a RJ45 crossover cable.
When the CDM-IP Ethernet port senses an Ethernet
connection, the CLI will display:
Ethernet Interface UP
If the connection is broken, the CLI will display:
Ethernet Interface DOWN
a) Verify both CDM-IP's are in Router-Point to Point Mode.
b) Verify PC's Gateways are set to local CDM-IP address.
c) Verify IF link between modems for proper settings and carrier
quality (RX signal level, E
spectrum inversion, particularly if you are using the CDM-IP with
RF converter equipment. If this is the case, the signal level &
E /N may be OK, but no data will be received. To correct this,
b 0
invert the TX and RX Spectrum on one of the CDM-IPs.
Verify CDM-IP Route Tables are correct.
F–10
Revision 12
MN/CDM570L.IOM
/N , etc.). It is possible that there is a
b 0