PPPoE load balancing

Scott Hiemstra scott at hiemstra.us
Mon Jun 2 20:37:05 PDT 2003

Maybe another option:
Purchasing a hardware solution; I've never used one personally but I have
heard good things about the Fatpipe Superstream from friends ($3,000 or so).
Several other companies make the exact same thing just in different forms.
It will allow you to bond multiple dsl/cable whatever and you don't need
BGP.  To implement BGP normally you need a pretty beefy router (My feelings
are a cisco 3600 and up).


Scott Hiemstra
scott at hiemstra.us

-----Original Message-----
From: owner-freebsd-questions at freebsd.org
[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Adam Maas
Sent: Monday, June 02, 2003 11:23 PM
To: lukek; FreeBSD
Subject: Re: PPPoE load balancing

----- Original Message -----
From: "lukek" <lukek at meibin.net>
To: "FreeBSD" <freebsd-questions at freebsd.org>
Sent: Monday, June 02, 2003 11:03 PM
Subject: PPPoE load balancing

> Hello,
> Let me apologise firstly if this is a topic which has been thrashed to
> on this list.  I need some advice before I get myself into a hole that is
> very deep, dark and lonely.
> I need to add an additional DSL line to my exisiting network to keep up
> the expanding bandwidth requirements of the users. In a situation like
> my first reaction would be to get some fibre into the office and take it
> from there but the building we are currently in is unsuitable for fibre (
> according to the provider ) therefore for the interim I have no choice but
> to get additional DSL circuits.
> My question is how difficult is it to get one FBSD router to reliably
> multiple DSL circuits. These circuits would have static IP addresses
> probably /28 on the outside and there are two distinct networks
> An ethernet segment and a wireless segment.


> I am using IPFilter and IPNat to provide simple NAT functions and simple
> firewalling functions. If I create further external links ie tun0 and tun1
> will this create problems for NAT ? I am contemplating separating the two
> internal networks so that the ethernet segment gets routed to tun0 and
> wireless to tun1. Would I need two instances of IPNat and IPFilter or can
> wrap all the rules into one instance of these tools ?
> Is there a smarter way to do this ?

A burstable T3 (It's copper)

> Any advice is appreciated as I suspect that this is not a trivial thing to
> accomplish reliably and given no other real options at this time I have to
> come up with a solution that is reliable. Ideally it would be great to be
> able to get load balancing and failover working but I won't push my luck.
> Regards,
> LukeK

DSL is not meant for multiple links. Having multiple links and running BGP
with your provider will work, but likely should use a non-PPPoE DSL
implementation . Best solution is either multiple T1's and a real router or
a T3 of some sort if you can't get fibre.


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