Monitoring Dhcp Requests; Issue: Client Unable To Reach The Dhcp Server; Issue: Ssh Session Is Not Established Between Edge Switch And Snas Server - Avaya 8800 Troubleshooting Manual

• Issue: client not registered by switch
• Issue: PC client Web page displays Cannot contact Web Server

Monitoring DHCP requests

You can monitor DHCP requests to aid in troubleshooting ASNA.
Note that you can check DHCP options on a UNIX server by using the man 5 dhcp-
options command.
1. You can mirror the DHCP port to another port connected to a PC with a sniffer
2. You can monitor DHCP packets using the following command:
3. You can monitor ASNA packets using:

Issue: client unable to reach the DHCP server

Use the following information if the client cannot reach the DHCP server.
Procedure steps
1. Check that the DHCP Relay Agent in the network switches is correctly
2. Check that the DHCP Server configuration is correct.
3. The routing in the network may not be configured so that DHCP Request and Reply
4. Check that the DHCP pools are correctly configured.
5. If the client cannot reach the server because the link is down, enable Auto-
Issue: SSH session is not established between edge switch and
SNAS server
Use the following information if an SSH session is not established between the edge switch
and the SNAS server.
Troubleshooting
installed.
trace level 15 3
trace level 89 3
configured.
packets are propagated. Check for routing issues. You can use ping and
traceroute.
Negotiation on the link.
Avaya Secure Network Access troubleshooting
on page 465
on page 466
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