If you have recently changed the address on the remote Frame Relay router interface, you
might need to use the clear frame-relay-inarp command to clear the Frame Relay map of
the local router. This will cause Inverse ARP to dynamically remap the new address with
the DLCI.
If the IP address of the peer router does not appear in the Frame Relay mapping table, the
remote router might not support Inverse ARP. Try adding the IP address??“to??“DLCI mapping
statically by using the frame-relay map protocol protocol-address dlci [broadcast]
command.
Additionally, access control lists (ACL) might be applied to the Frame Relay interfaces that
affect connectivity. To verify whether an ACL is applied to an interface, use the show ip
interface command.
To temporarily remove an ACL from an interface to verify whether it is affecting
connectivity, use the no ip access-group acl_num {in | out} command in interface
con?¬?guration mode.
For end-to-end connectivity to exist between two workstations across an active Frame
Relay network, general routing requirements must be met. Figure 8-34 shows the
troubleshooting steps for verifying end-to-end connectivity.
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