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Date:      Sat, 08 Apr 2000 02:00:59 +0100
From:      Brian Somers <brian@Awfulhak.org>
To:        Adrian Gonzalez <adrianbsd@globalpc.net>
Cc:        Brian Somers <brian@Awfulhak.org>, Thierry.Herbelot@alcatel.fr, isp@FreeBSD.ORG, Mark Knight <markk@knigma.org>
Subject:   Re: multi-PPP over UDP ? (was Re: Bandwidth aggregation (second try) ) 
Message-ID:  <200004080101.CAA05697@hak.lan.Awfulhak.org>
In-Reply-To: Message from Adrian Gonzalez <adrianbsd@globalpc.net>  of "Fri, 07 Apr 2000 19:39:02 CDT." <3.0.6.32.20000407193902.00913100@globalpc.net> 

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> 
> First off, thanks to all the people who replied with suggestions.  I've got
> PPP over UDP going now, however I'm having trouble getting it to establish
> the second link.  Anybody have an example what both the client and server
> ppp.conf should look like for a multilink ppp over udp setup?
> 
> I followed the ppp man page examples, but couldn't get the second link to
> work.

Because of the nature of UDP, unless you've got two listening UDP 
ports, the ppp -direct side will end up with just one link talking to 
the two links on the client side.  This is immensely confusing (it 
took me some time to figure out why it works.. and I wrote it!), and 
it is also why ppp -direct doesn't insist on the recvfrom()s all 
coming from the same peer sockaddr....

Roll on udpmux !

> -Adrian
> 
> At 06:46 PM 4/6/00 +0100, Brian Somers wrote:
> >> Hello
> >> 
> >> There was a post by Brian Sommers (the PPP maintainer) about setting up
> a multi-link PPP server with PPP transported via UDP. This would be a cheap
> way to aggregate bandwidth.
> >> 
> >> Things to do :
> >> - set up a PPP link over UDP between your two offices, one on each radio
> link
> >> - aggregate the two links with MPD (must be in the ports ...)
> >
> >ppp(8) does multi-link too.

-- 
Brian <brian@Awfulhak.org>                        <brian@[uk.]FreeBSD.org>
      <http://www.Awfulhak.org>;                   <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !




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