FCD-IPM Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics
Router Connections Troubleshooting 6-3
Table 6-4. IP Connection to WAN Troubleshooting (Cont.) Trouble symptoms Possible cause Recommended Course of Action
For PPP: connection status
shows “LCP”
PPP connection establish but
no IPCP connection
Check PPP configuration of FCD-IPM
and the unit opposite.
For Frame Relay: connection
status shows “port down”
There is physical connection
but no frame relay port UP
Check connection between modem
and frame relay switch.
Check FCD-IPM and switch
configuration.
For Frame Relay: link
connection status shows “port
UP” and DLCI connection
shows “DLCI down”
There is physical connection
UP and frame relay port UP
but specific DLCI is down
Check if the unit opposite the DLCI is
ON.
Check FCD-IPM, frame relay switch
and the opposite unit configuration.
Physical and logical
connections are OK but no IP
connection
IP configuration problem Look for mistakes in IP routing table,
HOST IP addresses, default gateway.