Multi-WAN with same static IP subnet DSL lines

[stramato]

Hello,

I've got a new setup, the company's got 4 ADSL lines. However, each two are on the same subnet;

dsl1: aaa.bbb.ccc.xx1
dsl2: aaa.bbb.ccc.xx2

dsl3: ddd.eee.fff.xx1
dsl4: ddd.eee.fff.xx2

They are ISP assigned IP's

Now I can only Load Balance 2 lines at a time?

I'm using BETA4 2.0. I've put all the dsl lines on Tier1.

Is there a way to make the 4 Load Balance without them being in separate subnets?

[jimp]

Two lines with the same gateway will not work.

Though if your ISP supports MLPPP, you could bond them that way and then you wouldn't need load balancing.

Failing that, you'd need some other little cheap NAT device to make the duplicate WANs appear as different subnets.