Hi, apologies as I am new to this so please bear with me as I try to explain......

I have 2 ADSL internet connections from the same ISP. I have a block of IP addresses which I can route down both lines.

I have a LAN network behind this on a private IP address range (192.168.16.0/24).

What I would like to achieve is to route all traffic down line A and then failover to line B if line A goes down.

I would also like incoming traffic (i.e. email on port 25) to still come in on line B if line A fails.

I would also rather (and I'm sure it's possible) bond both lines as if they were 1 line. So as far as the LAN is concerned all outgoing traffic goes over a pseudo interface and doesn't care which actual line it uses if that makes sense?

I hope someone can help.

I hope someone can help.

I did.

Welcome, by the way!

Thanks Nick.

I'm just struggling to grasp the concept that the Firbrick uses which is the pseudo address. I.e. I want the Pix to have X.X.X.9 (from my /29 block) as it's gateway...... am I right in thinking that it's as simple as assigning this address to one of the ethernet ports and then another IP from the same block to the next one?

I'm probably over complicating things now....