LARTC - Jul 2005 - Load balancing (LARTC 4.2) over 2 connections on 2 routers.

Hi,

I''m building a network similar to that seen in 4.2 of the LARTC Howto.
There is a diagram of this attached to this mail.

Addendum to diagram:
AlexRouter br0 = 192.168.58.1
           eth0 = dhcpcd
DaveRouter br0 = 192.168.58.2
           eth0 = dhcpcd

But we''ve run into some problems when actually implementing the routing
for multiple uplinks.

The difference between my network and the LARTC example is instead of
having one router with two modems I have two routers with one modem
each.

AlexRouter and DaveRouter.
They run Bering-uClibc 2.x off of fd0.

A wired/wireless network connects the two together. 192.168.58.0/24.

AlexRouter is the default route/DNS server/DHCP server for every host on
the network.

It gets its DNS servers from dhcpcd.

They way I figure it, Provider2 in the example is (in my case) actually
DaveRouter.
With that in mind, these are the figures I came up with for settings up
the routes.
These are all from the perspective of AlexRouter.

$IF1 = eth0
$IF2 = br0
$IP1 = 80.blah.blah.blah (can''t remember my real address)
$IP2 = 192.168.58.1
$P1 = $IP1 *DON''T KNOW IF THIS IS RIGHT, DON''T KNOW HOW TO
FIND MY
PROVIDERS GATEWAY* 
$P2 = 192.168.58.2 (DaveRouter)
$P1_NET = 80.blah.blah.0/24 (got $IP1 and $P1_NET from ip route show)
$P2_NET = 192.168.58.0/24
$P0_NET = 192.168.58.0/24
$IF0 = br0

If I set up all the routes using those values, test browsing around is
flakey.
Some pages load, some don''t (one connection working, one not?)

I *can* use one connection *OR* the other connection.
But only if I manually re-write /etc/resolv.conf to contain the correct
DNS servers for the provider used.
One ISP is Demon, the other is BT. They won''t let each other use their
DNS servers.
Also, I had duplicate returns from ping.

Apart from that, I''m not sure where I go with diagnosis.

Does anybody have any idea what''s going on?

Thanks,

James.

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