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Port Mirroring - Including VLAN Tag

  • 1.  Port Mirroring - Including VLAN Tag

    Posted 12-08-2020 20:24

    I have a port mirror configured, which is mirroring traffic from a trunk port.
    When I capture the traffic in Wireshark, there's no VLAN tags includes.

    Is there something special I need to do to keep the VLAN tags in the capture?


  • 2.  RE: Port Mirroring - Including VLAN Tag

    Posted 12-09-2020 08:19
    Hello Luke:

    I am assuming that you have a local analyzer configured and this is why you cant see the VLAN tags on the capture. If you want to see traffic from specific VLANS a remote analyzer needs to be configured. You can find configuration examples on the following article: https://kb.juniper.net/InfoCenter/index?page=content&id=KB10878&cat=SWITCH_PRODUCTS&actp=LIST 

    Kind regards