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N0X's avatar
N0X
Aspirant
Apr 04, 2022

Doubt about VLAN

Greetings, I have a small network at home that is composed (in short) by a Mikrotik routerboard and two switches, the main TP-Link and the secondary AlliedTelesis. I have multiple VLANs going through both switches to the routerboard. VLAN 1 is for the management of both switches. I recently changed the main switch (TP-Link) to a Netgear GS728TP and configured the same. All the VLANs work fine with the exception of VLAN 1 which does not reach the routerboard. In the Netgear switch, change the administrative VLAN to 5 and it reaches the routerboar but through 1 it does not.

8 Replies

  • schumaku's avatar
    schumaku
    Guru - Experienced User

    @N100X wrote:

     All the VLANs work fine with the exception of VLAN 1 which does not reach the routerboard.


    So there is something wrong with the trunk and port config for tagged vs untagged.

     


    N0X wrote:

    In the Netgear switch, change the administrative VLAN to 5 and it reaches the routerboar but through 1 it does not.



    This does not change anything on the VLAN config, just the admin features (management IP, WebUI, SNMP, telnet, SSH, is relocated.) Completely unrelated.

    • N0X's avatar
      N0X
      Aspirant
      All vlans arrive at the routerboard through the trunk port, except vlan 1. If I try to access vlan1 through another untagged port, I can access it.
      • schumaku's avatar
        schumaku
        Guru - Experienced User
        And how is the VLAN 1 configured on the trunk port and the router board? By default, the VLAN 1 is preconfigured on all ports as untagged and that's the reason why it's set to PVID 1 to associate untagged incoming frames to be VLAN 1.

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