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  1. #1

    Feature request: PPPoE 1500 MTU support (RFC4638)

    Region : Australia

    Model : TL-ER6020

    Hardware Version : V1

    Firmware Version : 140604

    ISP : n/a


    Hi,

    I'm disappointed to see that this high-end router does not support setting the MTU of the WAN ethernet interface above 1500 and the PPPoE MTU to 1500. My ISP supports this but the ER-6020 does not.

    http://tools.ietf.org/html/rfc4638

  2. #2
    Members Ada is on a distinguished road
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    Oct 2012
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    You heard any router could do this?

  3. #3
    I know not many routers support this. I'd at least like an acknowledgement of my question from TP-Link with either an ETA of the firmware support or a technical explaination why it can't be done (eg. underlying firmware simply can not exceed 1500 MTU for the ethernet interface without major changes)

  4. #4
    Members Mavis is on a distinguished road
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    Nov 2012
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    Did you try to google it? I am not a technician but I know that PPPoE protocol specifies the maximum MTU to be1492 bytes and PPPoA protocol specifies the maximum MTU to be 1500 bytes.

  5. #5
    Quote Originally Posted by Mavis View Post
    Did you try to google it? I am not a technician but I know that PPPoE protocol specifies the maximum MTU to be1492 bytes and PPPoA protocol specifies the maximum MTU to be 1500 bytes.
    http://tools.ietf.org/html/rfc4638

  6. #6
    Hi,

    I support this request.

    RFC4638 is now several years old, and major open-source implementations like mpd5 on FreeBSD as well as several devices to what TP-Link sells like the Draytek Vigor 130 support this in both bridged and routed mode.


 

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