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Re: trouble about IP Fragmentation by using the Linux Virtual Server

To: frederic.buche@xxxxxxxxxx
Subject: Re: trouble about IP Fragmentation by using the Linux Virtual Server
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Julian Anastasov <ja@xxxxxx>
Date: Sat, 7 Sep 2002 02:45:02 +0000 (GMT)
        Hello,

On Fri, 6 Sep 2002 frederic.buche@xxxxxxxxxx wrote:

> Our configuration is :  a kernel 2.4.18 and the ipvs patch 1.0.6
> (we tried also the other patches 1.00 ans 1.0.1)
>
> But this kind of ISDN connection works properly with an old version of the
> LVS (ipvs patch 0.9.15) with a Kernel 2.2.16.

        If this is true then it should be my fault that 1.0.6 for
2.4.19 does not work, I tested the frags ones... :)

> We tried to know if our problem was coming from the Linux ip layer or from
> the IPVS.

        I would suspect LVS.

> So we set up an address tranlation to another server, in order that each
> ip datagramm should be relayed.
> This test was working properly, that's means the Linux ip layer is
> correct.
>
> It seems that the bug comes from the ipvs.

        Hm, can you send tcpdump output on the director's output
interface. Also, what is the used forwarding method? Is Netfilter
running?

> Has someone an idea about that ?
> Is there any solution to thus problem
>
> Regards
>
> Frédéric BUCHE
> mailto : frederic.buche@xxxxxxxxxx

Regards

--
Julian Anastasov <ja@xxxxxx>



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