Ipv6 Dhcp Relay Server Side Troubleshooting; Ipv6 Dhcp Relay Client Side Troubleshooting; Enabling Trace Messages For Ipv6 Dhcp Relay; Troubleshooting Bfd - Avaya 8800 Troubleshooting Manual

Upper layer troubleshooting

IPv6 DHCP Relay server side troubleshooting

1. Enable the services on the server side, then create an IP pool. This IP pool must
2. When the configuration is complete, perform an authorization.
3. Check the log file available on the server to verify the reason for packet drop.
4. Capture the packets on the server side using Ethereal.
5. From the server side, use to ping to verify that the relay agent address is
6. For more configuration aspects, refer to the MS webpage for troubleshooting and

IPv6 DHCP Relay client side troubleshooting

You can collect a client console dump, which can be used to analyze why the received packet
cannot be processed and the allocated address cannot be used by the client.
In addition, restarting the client can also fix the issue in some cases.

Enabling trace messages for IPv6 DHCP Relay

To troubleshoot IPv6 DHCP Relay, you can enable rcip6 trace messages using the following
command:
trace level 66 3
You can also enable IPv6 forwarding trace using the following command:
trace ipv6 forwarding enable

Troubleshooting BFD

See the following sections to troubleshoot the specified BFD issue:
• BFD session stays in down state
• BFD enabled on OSPF or BGP, but session not created
• BFD session flaps
440 Troubleshooting
have the range of addresses which you want to assign to the clients. Configure this
IP pool with the same network subnet as that of the relay agent.
reachable.
configuration issues.
on page 442
Comments? infodev@avaya.com
on page 441
on page 441
July 2013