From owner-freebsd-stable  Fri May 21  8:54: 9 1999
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Subject: Re: Multihome support ?
In-Reply-To: <199905211535.KAA13801@alecto.physics.uiuc.edu> from Igor Roshchin at "May 21, 1999 10:35:47 am"
To: igor@physics.uiuc.edu (Igor Roshchin)
Date: Fri, 21 May 1999 11:53:55 -0400 (EDT)
Cc: stable@FreeBSD.ORG
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Igor,

Multihoming has worked just fine since the 2.2 days (which is as far
back as I've used FreeBSD, so I can't talk about anything earlier.  ;)

I have used both OSPF and BGP for automatic fallback.  Other people
use rip.  You exact choice depends on your situation.  If you have two
56k modems, you probably don't want a full BGP feel down each.  ;) If
you have a T1+ down each link, and if your upstream can support it,
and if you have enough memory, I'd recommend BGP.  Other people will
tell you that BGP sucks, however, so YMMV.

If you just want rip, you can use the built-in routed.  If you want
something more sophisticated, use gated from ports.

And yes, this is probably more appropriate for -questions.  But we're
not *that* uptight over here.

==ml

> 
> Hello!
> 
> Does the 3.x-STABLE support multihoming nicely ?
> (i.e. having two different network cards/interfaces connected to different
> networks/ISPs)
> How is the decision made by the kernel as to which interface
> to use for outgoing connections ?
> 
> IIRC, in the old days people had to hack the system code to be able
> to have a multihomed host.
> 
> Altimately, I am looking for a solution which would allow to have
> some kind of "backup" network connection that can work automatically
> when one of the networks is down, or connectivity to some particular
> outside network is bad.
> 
> Any pointers and advices are appreciated.
> 
> I appologize if this should've been sent to a different list (like questions)
> in that case, you can respond directly to me.
> 
> Thanks,
> 
> Igor
> 
> 
> 
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