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Date:      Mon, 09 Jan 2012 21:47:24 +0100
From:      "Michael Ross" <gmx@ross.cx>
To:        freebsd-questions@freebsd.org, "Christoph Egger" <christoph@christoph-egger.org>
Subject:   Re: 2 distinct DSL lines with same endpoint (8-STABLE)
Message-ID:  <op.v7t31amug7njmm@michael-think>
In-Reply-To: <87obuciq68.fsf@hepworth.siccegge.de>
References:  <87obuciq68.fsf@hepworth.siccegge.de>

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Am 09.01.2012, 21:20 Uhr, schrieb Christoph Egger  
<christoph@christoph-egger.org>:

> Hi all!
>
>   I'm having a FreeBSD 8 gateway that is supposed to do NAT/firewall
> stuff with internet coming through 2 distinct DSL modems from the same
> carrier. Unfortunately I can only run ppp on one of these lines as the
> endpoint address for both lines are the same so bringing up the second
> line fails in
>
> | PPp ON elephant> Warning: tun1: AIFADDR X.X.X.X -> Y.Y.Y.Y returns -1
> | Warning: iface add: ioctl(SIOCAIFADDR, X.X.X.X -> Y.Y.Y.Y): File exists
> | Error: ipcp_InterfaceUp: unable to set ip address
>
> Where Y.Y.Y.Y is already also used for the other ppp connection.
>
>   This seems to be a known Problem with FreeBSD ppp (google turns up
> some results) but I haven't found any usefull workarounds. Can anyone
> suggest some way to get this kind of setup working?
>
> Regards
>
>     Christoph
>

Maybe netgraph will do?



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