[afnog] gre on PPPoE

[Siwangu Mgata]

Hello all,

It was the TCP MSS issue. ADSL PPPoE link had higher MTU than the GRE 
tunnel.

Thank you all for the help.

Rgds,

Siwangu

----- Original Message ----- 
From: <stevem at accesskenya.com>
To: "Siwangu Mgata" <svmgata at sihebs.co.tz>
Cc: <afnog at afnog.org>
Sent: Tuesday, June 12, 2007 1:38 PM
Subject: Re: [afnog] gre on PPPoE


>> Dear all,
>>
>> I have two offices connected using ADSL.
>> I want to run a data store application between these two offices but the
> challenge is when i create a VPN, the application stop working.
>> What might be the problem.
>>
>> It stop working even when i create a simple ipip tunnel
>>
>> Rgds,
>>
>
> Just like Stephane's already said, I'm willing to bet my left big toe that
> it's a TCP MSS problem.
>
> Reminds me of problems I had once upon a time running WCCP with a Squid
> box over a GRE tunnel (old Squid version, newer versions include GRE
> support), would break access to sites such as Hotmail and Yahoo mail.
> This article really helped:
>
> http://www.cisco.com/warp/public/105/56.html
>
> Regards,
> Steve
>
>
>
>
>
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