XMG1915-10E doesn't assign VLAN tags

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pAckmAn4000
pAckmAn4000 Posts: 2 image  Freshman Member
in Switch

Hi

I have a problem with VLANs - the switch doesn't assign VLAN tags on the untagged ports.

The setup is very basic - the router with LAN port connected to the switch. Just to make sure that the router is configured correctly I tested it by connecting the client laptop ethernet port directly to LAN port. Both when client laptop is untagged and when it is set to add VLAN tag 10 it receives the expected DHCP address (Untagged - 192.168.1.X/24 and VLAN10 - 192.168.10.X/24).

The connected switch has the following settings - all others are default:

image.png image.png image.png image.png

And the switch has its WebUI in both VLANS:

image.png

The router connected to port 1. Port 3 should be untagged port for VLAN10. Untagged VLAN works well on all ports 2,4-10. However, untagged client on port3 doesn't work - no DHCP, doesn't even work when I set static IP in the correct IP segment 192.168.10.1/24 and cannot ping the gateway. If I manually set VLAN tag to 10 on the client on port 3, it starts to work normally. So the problem is that it doesn't assign VLAN tag 10 on the incoming frames on port 3, despite VLAN PORT Setup. Do I need to setup something else to make it work?

All Replies

  • XiLeiHaLo
    XiLeiHaLo Posts: 2 image  Freshman Member
    First Comment Fourth Anniversary

    If I manually set VLAN tag to 10 on the client on port 3, it starts to work normally

    Do you mean you keep port 3 as untagged and PVID 10, and set laptop adapter to tagged 10 or change port 3 to tagged 10 to make it work?

  • PeterUK
    PeterUK Posts: 4,228 image  Guru Member
    250 Answers 2500 Comments Friend Collector Eighth Anniversary
    edited November 24

    When you did the test with the laptop and set its VLAN to 10 did you you unset it to no VLAN?

    is there another switch in front of the XMG1915-10E?

  • Zyxel_Tina
    Zyxel_Tina Posts: 401 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers First Comment

    Hi @pAckmAn4000,

    Welcome to the Zyxel Community!

    From the images you provided, your VLAN configuration looks correct.

    To investigate further, could you please check the switch’s MAC table when the issue occurs?

    Specifically, please verify:

    1. Whether Port 3 has learned the MAC address of the connected device
    2. Which VLAN ID Port 3 is associated

    If possible, please provide a screenshot of the MAC table showing Port 3 during the issue.

    Thank you for your cooperation—this information will help us narrow down the cause.

    Zyxel Tina

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