Mocomtech CDM-570L Manual De Usuario

CDM-570/570L Satellite Modem with Optional IP Module 

Revision 4 

Appendix D 

MN/CDM570L.IOM 

Use the following troubleshooting steps if unable to successfully send traffic in Router 
Mode. 

 

Verify correct IP address/subnet on PC and 
CDM-IP. 

No Ping response from the 
locally connected PC to the 
CDM-IP Ethernet port. ICMP 
response is ‘Request timed out’. 

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: 

If the connection is broken, the CLI will 
display: 

No Ping response from the 
locally connected PC to the 
remote CDM-IP or remote PC. 
ICMP response is ‘Request 
timed out’. 

 

Verify both CDM-IP’s are in Router/Small Network 
Modes.  

Verify PC’s Gateways are set to local CDM-IP 
address. 

Verify IF link between modems for proper settings 
and carrier quality (RX signal level, E

b

/N

0

, etc.). It 

is possible that there is a spectrum inversion, 
particularly if you are using the CDM-IP with RF 
converter equipment. If this is the case, the signal 
level & E

b

/N

0

 may be OK, but no data will be 

received. To correct this, invert the TX and RX 
Spectrum on one of the CDM-IPs. 

 

No Ping response from PC 1 to 
PC 2 or vice versa. ICMP 
response is 

‘ Reply from 172.XXX.10.1 -
Destination net unreachable’ 

Verify CDM-IP Route Tables are correct.  

 

 

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