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Web-based Configuration Guide

S7700 and S9700 V200R011C10

This document describes the configuration and maintenance of device through the web network management system. The web network management system provides the functions of viewing device information and managing the entire system, interfaces, services, ACL, QoS, routes, security, and tools.
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Wireless Packet Capturing

Wireless Packet Capturing

Context

Packets on air ports can be obtained through the Wireless Packet Capturing function, but packets on the wired side cannot. Analysis of the obtained packets can help locate and troubleshoot faults. Packets to be obtained include:
  • All packets sent from the local AP and packets with the destination (BSSID) as the local AP
  • All 802.11 protocol packets sent from other APs/STAs or with the destination (BSSID) as other APs/STAs, except the ARP, DHCP, and EAPOL packets
NOTE:

This node is only available in the NAC unified mode.

The web system is applicable to wireless service deployment on small- and middle-sized networks. For large-sized networks, use other network management systems, such as eSight.

Procedure

  1. Choose Diagnosis > Diagnostic Tools > Wireless Packet Capturing. The Wireless Packet Capturing page is displayed.



  2. Set global parameters.
    1. In Global Settings, set parameters related to the Wireless Packet Capturing function. For description of the parameters, see Table 6-2.
    2. Click Apply. In the Info dialog box that is displayed, click OK.

      Table 6-2  Global parameters

      Parameter

      Description

      Maximum data packet length

      Maximum length of packets to be obtained through the Wireless Packet Capturing function.

      After you enable the Wireless Packet Capturing function on an AP radio, the AP starts collecting packet headers. The AP collects only data packets with lengths smaller than the configured maximum length.

      Saving mode

      Mode used to save the obtained packets. Two modes are available:
      • Save locally: The obtained packets are saved locally.
      • Send in real time: The obtained packets are forwarded to the server in real time.

      Destination IP address

      IP address of the server in real-time transmission mode.

      Maximum size of storage file

      Maximum size of the storage file when the obtained packets are saved locally.

      Upload mode

      Mode used to upload the local file to the server when the obtained packets are saved locally.

      Server IP address

      IP address of the Server.

      User name

      User name of the Server.

      Password

      Password of the Server.

  3. Configure the rule for filtering packets.
    • Creating a filtering rule profile

      1. In Filter Rule Profile Management, click Create.

      2. Set the parameters on the Create Filter Rule page that is displayed. For description of the parameters, see Table 6-3.

      3. Click OK.
        Table 6-3  Parameters for creating a filtering rule profile

        Parameter

        Description

        Profile name

        Name of the filtering rule profile.

        After the Wireless Packet Capturing function starts, the AP filters packets based on filtering rules contained in the filtering rule profile and collects only packets that match the rules.

        Filtering protocol

        Protocol type of packets to be obtained through the Wireless Packet Capturing function.
        • Beacon: The device collects only Beacon packets.
        • Probe: The device collects only Probe packets.
        • EAP: The device collects only EAP packets.
        • DHCP: The device collects only DHCP packets.
        • Other-mgnt: The device collects 802.11 management packets except the Beacon and Probe packets.
        • Data: The device collects only data packets.

        Rule ID

        ID of the filtering rule.

        Source MAC address

        Specifies the source MAC address of packets to be obtained.

        Destination MAC address

        Specifies the destination MAC address of packets to be obtained.

        BSSID

        Specifies the BSSID of packets to be obtained.

    • Modifying a filtering rule profile

      1. In the list of filtering rule profiles, click the filtering rule profile to modify.
      2. Modify the parameters on the Modify Filter Rule page that is displayed. For description of the parameters, see Table 6-3. (The Profile name parameter cannot be modified.)
      3. Click OK.
    • Deleting a filtering rule profile

      In the list of filtering rule profiles, choose the filtering rule profile to delete and click Delete. In the Confirm dialog box that is displayed, click OK.

  4. Enable the Wireless Packet Capturing function.
    1. Click Start.
    2. In the Wireless Packet Capturing dialog box that is displayed, set AP name, Radio ID, Filter rule profile, and Channel, then click OK.



Follow-up Procedure

  • To stop a packet capturing task, select a record in the packet capturing task list, then click Stop.
  • If Saving mode is set to Save locally, you can select a record in the packet capturing task list and click Upload File to upload the saved file to the server.
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Updated: 2019-10-17

Document ID: EDOC1000178323

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