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PPPOE with MTU higher than 1492 (rfc-4638)

semoca
Hi,

It looks like MTU values higher than 1492 are not supported on my current version 9.201-23

Can anyone please advise if this is supposed to be like this as I read it was already implemented on previous versions.

(Support PPPoE RFC 4638 (MTU > 1492))

If not, is there any way to set the MTU value permanently on the ppp0 interfaz?

thanks in advance


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  • 0
    Hi, semoca, and welcome to the User BB!

    It is possible to set this via command line, but I don't understand what there is to gain by changing from 1492 to 1500...

    I think it might be:

    cc change_object REF_external mtu 1500


    Where REF_external is the REF for your ppp0 interface.  This can be found by:

    cc
    interfaces
    interfaces@
    exit


    Any change made from the command line risks losing support and warranty.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    Hi, semoca, and welcome to the User BB!

    It is possible to set this via command line, but I don't understand what there is to gain by changing from 1492 to 1500...

    I think it might be:

    cc change_object REF_external mtu 1500


    Where REF_external is the REF for your ppp0 interface.  This can be found by:

    cc
    interfaces
    interfaces@
    exit


    Any change made from the command line risks losing support and warranty.

    Cheers - Bob



    Hi BAlfson,

    Not quite sure how to do what you mentioned.
    Can you please elaborate?

    thanks
Reply
  • 0 in reply to BAlfson
    Hi, semoca, and welcome to the User BB!

    It is possible to set this via command line, but I don't understand what there is to gain by changing from 1492 to 1500...

    I think it might be:

    cc change_object REF_external mtu 1500


    Where REF_external is the REF for your ppp0 interface.  This can be found by:

    cc
    interfaces
    interfaces@
    exit


    Any change made from the command line risks losing support and warranty.

    Cheers - Bob



    Hi BAlfson,

    Not quite sure how to do what you mentioned.
    Can you please elaborate?

    thanks
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