Defining, Modifying, Or Deleting A Capture Point - Cisco Catalyst 4500 Series Software Configuration Manual

How to Configure Wireshark
Table 68-1
Feature
File size
Ring file storage
Buffer storage mode

Defining, Modifying, or Deleting a Capture Point

Although listed in sequence, the steps to specify values for the options can be executed in any order. You
can also specify them in one, two, or several lines. Except for attachment points, which can be multiple,
you can replace any value with a more recent value by redefining the same option, in the following order:
Step 1 Define the name that identifies the capture point.
Step 2 Specify the attachment point with which the capture point is associated.
Multiple attachment points can be specified. Range support is also available both for adding and
removing attachment points.
Step 3 Define the core system filter, defined either explicitly, through ACL or through a class map.
Step 4 Specify the session limit (in seconds or packets captured).
Step 5 Specify the packet segment length to be retained by Wireshark.
Specify the file association, if the capture point intends to capture packets rather than merely display
Step 6
them.
Step 7 Specify the size of the memory buffer used by Wireshark to handle traffic bursts.
To filter the capture point, use the following commands:
Command
[no] monitor capture mycap match {any | mac
mac-match-string | ipv4 ipv4-match-string | ipv6
ipv6-match-string}
[no] monitor capture mycap match mac {src-mac-addr
src-mac-mask | any | host src-mac-addr} | {dest-mac-addr
dest-mac-mask | any | host dest-mac-addr}
[no] monitor capture mycap match {ipv4 | ipv6}
[src-prefix/length | any | host src-ip-addr] [dest-prefix/length
| any | host dest-ip-addr]
[no] monitor capture mycap match {ipv4 | ipv6} proto
{tcp | udp} [src-prefix/length | any | host src-ip-addr] [eq |
gt | lt | neq <0-65535>] [dest-prefix/length | any | host
dest-ip-addr] [eq | gt | lt | neq <0-65535>]
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
68-12
Default Wireshark Configuration
Default Setting
No limit
No
Linear
Purpose
Defines an explicitly in-line core filter.
To remove the filter, use the no form of this command.
Specifies use of a filter for MAC.
To remove the filter, use the no form of this command.
Specifies a filter for IPv4/IPv6, use one of the formats.
To remove the filters, use the no form of this command.
Chapter 68 Configuring Wireshark