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  1. #1

    VLAN not working

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    Hi,

    I just setup my TL-ER6120 and set the LAN ports to different VLAN. So port 3 is VLAN1, port4 is VLAN2 and port5 is VLAN3. For my understanding devices connected to VLAN1 should not be able to communicate to devices connected to VLAN2 or 3. But I can ping between different VLAN.
    So at the the moment I just did a reset to factory defaults and after that the only configuration changed is that in port VLAN function I set the described configuration. Did I miss to configure something or misunderstood the function?

  2. #2
    Members Mr.J is on a distinguished road
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    Hi dude
    You don't misunderstand anything, they should't communicate with each other if they were at different port VLAN.
    So after resetting, the problem still exist?

  3. #3
    Yes, still the same...

  4. #4
    Members R1D2 is on a distinguished road
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    Quote Originally Posted by tcs View Post
    But I can ping between different VLAN.
    The TL-ER6120 is a router, so in port VLAN mode it just adds VLAN tags to the outgoing Ethernet packets making the port VLAN trunk ports. For incoming VLAN-tagged Ethernet packets it just routes them.

    It does not make much sense to have two (or three) different VLANs with untagged ports if your device just has two (or three) physical LAN ports. What would you want to achieve with such a setup? The only useful achievement for which VLANs are needed on a TL-ER6120 is to exchange data between different VLANs with the TL-ER6120 router over one or two physical connections, so that separate broadcast domains can be created. For this to work, you also have to assign different subnet IPs. Using VLANs therefore provide a mapping of VLAN IDs to different subnets, which then are undergoing routing (that's what a router is supposed to do).

    Therefore, to use the VLAN capabilities of the TL-ER6120, you need either a VLAN-capable switch or servers which support VLAN trunk ports:

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    Last edited by R1D2; 02-24-2017 at 00:01.

  5. #5
    Members Mr.J is on a distinguished road
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    Quote Originally Posted by tcs View Post
    Yes, still the same...
    I agree with Mr R1D2 about the use of ER6120. However, your problem shouldn't happen if there is no mistake in configuration.
    I suggest you can contact the supporter directly. They can offer you professional help.
    Moreover, one thing you should know, the VLAN function in ER6120 v1 is not the same with 802.1Q VLAN. They are different.

  6. #6
    Members R1D2 is on a distinguished road
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    Quote Originally Posted by Mr.J View Post
    Moreover, one thing you should know, the VLAN function in ER6120 v1 is not the same with 802.1Q VLAN. They are different.
    Hm. So how is a switch using 802.1Q VLANs supposed to work with the topology such as shown in #4 above?


 

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