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5. Diagnostics and Troubleshooting
5-20
April 2001 8000-A2-GB26-50
Table 5-8, Router-to-IPC Segment, examines the Router-to-IPC segment of the
network from the router end of the segment.
Cannot Upload Configurations to a UNIX Server
Procedure
If the TFTP server denies write permission and displays the message
TFTP recv failure:
1. Before uploading configurations, create a dummy file and give it global
Read-Write permissions.
2. Configure TFTP host to have Write permissions in the specified directory.
Table 5-8. Router-to-IPC Segment
Layer Solution
Layer 2 –
Network
1. On the router, make sure that the defined line characteristics agree with
the characteristics defined on the IPC.
2. Make sure a virtual circuit is configured under the respective ATM
subinterface. The PVC number should correspond to the PVC number on
the IPC.
3. Make sure a bridge-group number is configured under the respective
ATM subinterface and that the BVI number is the same as the
bridge-group number.
4. Make sure encapsulation on the router is the same as on the IPC
(RFC1483).
5. Make sure the client’s default gateway is the same as the IP address for
BVI on the appropriate ISP router.
6. If a Ping from the client is not successful, issue a
show ARP-cache
command on the router to make sure the correct MAC address and client
IP address appear.