CCNP TSHOOT 6.0 - Cisco Learning Home
CCNP TSHOOT 6.0 - Cisco Learning Home
CCNP TSHOOT 6.0 - Cisco Learning Home
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<strong>CCNP</strong>v6 <strong>TSHOOT</strong><br />
Section 2 Troubleshooting Reference Information<br />
NAT command examples include verification of NAT boundaries, the type of NAT configured, NAT statistics, NAT<br />
translations, and debugging NAT translations.<br />
DHCP examples include verification of the DHCP server configuration, address pools, DHCP server statistics,<br />
client configuration, and debugging DHCP activity.<br />
General Troubleshooting Process<br />
As a general guideline, you can use the following general troubleshooting process described in the course.<br />
1. Define the problem (symptoms).<br />
2. Gather information.<br />
3. Analyze the information.<br />
4. Propose a hypothesis (possible cause).<br />
5. Test the hypothesis.<br />
6. Eliminate or accept the hypothesis.<br />
7. Solve the problem.<br />
8. Document the problem.<br />
Command Summary<br />
The table lists useful commands for this lab. The sample output is shown on following pages.<br />
show ip nat statistics<br />
show ip nat translations<br />
debug ip icmp<br />
debug ip nat<br />
clear ip nat translations *<br />
clear ip nat statistics *<br />
Command Key Information Displayed<br />
show ip dhcp server statistics<br />
show ip dhcp pool<br />
show ip dhcp conflicts<br />
Displays the NAT pool configuration information, boundaries<br />
(inside and outside interfaces), translation pool size, and<br />
usage statistics.<br />
Displays all current translations (static and dynamic),<br />
including the initiating protocol as well as inside global, inside<br />
local, outside local, and outside global addresses.<br />
Displays real-time information related to ping (echo request<br />
and echo reply) and other protocols that make use of ICMP.<br />
Displays real-time information related to NAT translation<br />
activity (static and dynamic).<br />
Clears all dynamic translations.<br />
Clears NAT counters.<br />
Displays DHCP pool activity from hosts requesting IP<br />
addressing.<br />
Displays DHCP pool information, including the address<br />
range, number of excluded addresses, and lease activity.<br />
Displays conflicts resulting from assigning addresses that are<br />
already assigned to a device interface in the same subnet or<br />
network.<br />
show ip dhcp binding Displays the IP address, hardware (MAC) address, and lease<br />
All contents are Copyright © 1992–2010 <strong>Cisco</strong> Systems, Inc. All rights reserved. This document is <strong>Cisco</strong> Public Information. Page 13 of 20
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