CCNP TSHOOT 6.0 - The Cisco Learning Network

CCNPv6 TSHOOT
Section 2 Troubleshooting Reference Information
General Troubleshooting Process
As a general guideline, you can use the following general troubleshooting process described in the course.
1. Define the problem (symptoms).
2. Gather information.
3. Analyze the information.
4. Propose a hypothesis (possible cause).
5. Test the hypothesis.
6. Eliminate or accept the hypothesis.
7. Solve the problem.
8. Document the problem.
Command Summary
The table lists useful commands for this lab. The sample output is shown on following pages.
Command Key Information Displayed
show ip dhcp snooping
debug ip dhcp snooping packet
debug ip dhcp server packet
show ip eigrp neighbors
sh ip eigrp interfaces
show ip eigrp interfaces detail
debug eigrp packets
Displays snooping status (enabled or not) and, if
enabled, on which VLANs. Also shows which interfaces
are trusted.
Displays real-time information on DHCP snooping activity
and the client/server exchange.
Displays real-time information on DHCP on the
client/server exchange from the server perspective.
Displays the IP address of EIGRP neighbors and the
interface on which they were learned.
Displays all interfaces participating in EIGRP for each AS
and the number of peers associated with each interface.
Displays all interfaces participating in EIGRP for each AS
along with the number of peers, hello interval, and the
type of authentication (if configured).
Displays real-time information on types of EIGRP
packets exchange, which include authentication
information.
All contents are Copyright © 1992–2010 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 17