Cisco Catalyst 4500 Series, Software Configuration Manual

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 68 Configuring Wireshark
Usage Examples for Wireshark
Step 1
Define a capture point to match on the relevant traffic by entering:
Switch# monitor capture mycap interface gi 3/1 in match ipv4 any any
Switch# monitor capture mycap limit duration 60 packets 100
Note
To avoid high CPU utilization, a low packet count and duration as limits has been set.
Step 2
Confirm that the capture point has been correctly defined by entering:
Switch# show monitor capture mycap parameter
monitor capture mycap interface GigabitEthernet3/1 in
monitor capture mycap match ipv4 any any
monitor capture mycap limit packets 100 duration 60
Switch# show monitor capture mycap
Status Information for Capture mycap
Target Type:
Interface: GigabitEthernet3/1, Direction: in
Status : Inactive
Filter Details:
IPv4
Source IP: any
Destination IP: any
Protocol: any
File Details:
File not associated
Buffer Details:
Buffer Type: LINEAR (default)
Limit Details:
Number of Packets to capture: 100
Packet Capture duration: 60
Step 3
Start the capture process and display the results.
Switch# monitor capture mycap start display
0.000000 10.1.1.30 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
1.000000 10.1.1.31 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
2.000000 10.1.1.32 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
3.000000 10.1.1.33 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
4.000000 10.1.1.34 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
5.000000 10.1.1.35 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
6.000000 10.1.1.36 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
7.000000 10.1.1.37 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
8.000000 10.1.1.38 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
9.000000 10.1.1.39 -> 20.1.1.2 UDP Source port: 20001 Destination port: 20002
Step 4
Delete the capture point by entering:
Switch# no monitor capture mycap
Example: Simple Capture and Store
This example shows how to capture packets to a filter.
Step 1 Define a capture point to match on the relevant traffic and associate it to a file by entering:
Switch# monitor capture mycap interface gi 3/1 in match ipv4 any any
Switch# monitor capture mycap limit duration 60 packets 100
Switch# monitor cap mycap file location bootflash:mycap.pcap