2 adsl connections load balancing with natd/ipfw

[Mitch (bitblock)]

Hi Joe!

I'd love to know more about this... I've got access to do just that, but
don't know where exactly to start... We use ADSL which is delivered over ATM
transport - we have mini FreeBSD boxes on the client site, and a FreeBSD box
as a router in the colo as gateway - we're setting it up to do mesh VPN
routing, and packet filtering, etc. but I guess we are in the right position
to set something like that up for anyone wanting more bandwidth...

The nature of the ATM transport is that A can see B and C can see B, but A
can not see C (atm path restrictions - it would have to be routed or bounced
off B, and although I've heard people mumble about /32 subnetting, I'm not
sure how that would work)

A--ADSL---\
          B --- Internet
C--ADSL---/

Thanks.

m/

> -----Original Message-----
> From: owner-freebsd-isp at freebsd.org
> [mailto:owner-freebsd-isp at freebsd.org]On Behalf Of Joe Hamelin
> Sent: Tuesday, May 25, 2004 3:02 PM
> To: freebsd-isp at freebsd.org
> Subject: Re: 2 adsl connections load balancing with natd/ipfw
>
>
>
> It's not an easy solution at all.  You'll need the help of your ISP
> and a run some routing protocol (i.e.; OSPF or BGP.)  The reason is
> that you will need to tie the two IPs of the DLS lines to a third
> virtual IP, at both ends.  Good luck getting your ISP to play along.
>
> -Joe
>
> --
>   ========================================================
>    Joe Hamelin       joe at nethead.com                W7COM
>    Nethead, Inc.   Edmonds, Washington       206.898.8086
>   ========================================================
>
> On Tue, 25 May 2004, Evren Yurtesen wrote:
>
> :Hi,
> :
> :I looked for such a long time in mailing lists and google but I couldnt
> :find anything conclusive about how can I do load balancing for 2 ADSL
> :links I have. I have 2 ADSL connections to the same ISP and they are the
> :same speed. I just want to load balance it so that both links will be
> :used evenly (or about even).
> :
> :Any tips or suggestions?
> :
> :Evren
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