05-Web configuration examples (AC+fit AP)

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60-Local Packet Capture Configuration Example
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H3C Access Controllers

Comware 7 Local Packet Capture

Configuration Example

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2022 New H3C Technologies Co., Ltd. All rights reserved.

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologies Co., Ltd.

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.

The information in this document is subject to change without notice.

 



Overview

The following information provides an example for configuring local packet capture and analyzing the captured packets.

Prerequisites

The following information applies to Comware 7-based access controllers. Procedures and information in the examples might be slightly different depending on the software or hardware version of the H3C access controllers.

The configuration examples were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

The following information is provided based on the assumption that you have basic knowledge of local packet capture.

Example: Configuring local packet capture

Network configuration

As shown in Figure 1, configure local packet capture on Radio 1 of the AP to capture 1 KB from each TCP packet sourced from 192.168.0.2. Send the captured packets to the FTP server on the PC. Start Wireshark on the PC to analyze the packets.

Figure 1 Network diagram

 

Prerequisites

·     Make sure the AP can access the AC.

·     Install Wireshark V2.6.4 on the PC and make sure the PC and the AP can communicate with each other.

·     Install FTP server software on the PC and configure the FTP server. Configure an account that uses username abc and password 123456, and assign the account the write privilege.

Configuring the AC

1.     Click the Network View tab at the bottom of the page.

2.     From the navigation pane, select Tools > Wireless Capture.

3.     Select the wa5320 AP entry with radio 5GHz(1) and click Start.

Figure 2 Selecting an AP

 

4.     Configure the following packet capture parameters:

¡     Select the local capture mode.

¡     Enter src 192.168.0.2 and tcp as the capture filter expression.

¡     Set the packet file size to 1 KB.

¡     Enter ftp://105.1.177.79/abc.pcap as the FTP server URL.

¡     Enter abc as the username for accessing the FTP server.

¡     Enter 123456 as the password for accessing the FTP server.

Figure 3 Configuring local packet capture parameters

 

5.     Click Start.

Figure 4 Starting local packet capture

 

Verifying the configuration

1.     Display files on the FTP server. File abc.pcap is displayed. (Details not shown.)

2.     Drag the file to Wireshark to analyze the packet. (Details not shown.)

Related documentation

H3C Access Controllers Web-Based Configuration Guide

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