Re: the correct ipv6 behavior for interfaces with gif tunnel on them

From: B ($B?_at_L@C#:H(B)
Date: 12/10/04

  • Next message: K sarraf: "Problem with Interface Link Down Detection in Routing Deamon" 
    Date: Fri, 10 Dec 2004 11:50:41 +0900
To: "Konstantin KABASSANOV" <Konstantin.Kabassanov@lip6.fr>

    >>>>> On Thu, 9 Dec 2004 18:53:37 +0100,
    >>>>> "Konstantin KABASSANOV" <Konstantin.Kabassanov@lip6.fr> said:

    >> Please provide more detailed network configuration. Are you talking
    >> about a router box forwarding packets onto gif and physical
    >> interfaces?

    > Well, this is a router box with 2 physical interfaces (say xl0 and rl0).
    > Rl0 has a gif tunnel (gif0) over it. Xl0,rl0 and gif0 announce in their
    > ifconfig an MTU of 1500, but 1300 bytes traffic generated from this box
    > and sent through the gif0 interface is fragmented by the rl0 interface to
    > 1280 bytes...
     
    > Please also specify the OS name (which I guess is
    >> FreeBSD) and its version.

    > FreeBSD 4.7 (yes it is a little bit old, but I think the problem still
    > persist in more recent versions)... And that's why I'm asking if this
    > behavior is normal or not...

    This is not the intended behavior, and seems to be fixed at least on
    FreeBSD 5.3. I don't know whether the change is merged into 4.x. At
    least it's not the case with FreeBSD 4.10.

                                            JINMEI, Tatuya
                                            Communication Platform Lab.
                                            Corporate R&D Center, Toshiba Corp.
                                            jinmei@isl.rdc.toshiba.co.jp
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  • Next message: K sarraf: "Problem with Interface Link Down Detection in Routing Deamon"

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