Triple WAN in same gateway?

[dimsum888]

I've read that it is possible by utilizing NAT routers.

Anyone can show the step by step?

TIA!

[joako]

What's there to explain?

I have something like this. 2 ADSL from the ISP. These ADSL modem are bad, since you do IP passthrough and the address assigned to the WAN is such as

IP: 33.1.2.3
SUBNET: 255.0.0.0
GW 31.1.2.254

No issues, but connect another one and it's the same. Dynamic IP so it changes. Both IP start with same octet at times, e.g. 2nd WAN:

33.99.2.5
SUBNET: 255.0.0.0
GW: 31.99.2.254

See the issue?

So you connect your WAN 1 to a cheap NAT router, set the LAN IP to e.g. 10.10.0.1/24
So you connect your WAN 2 to a cheap NAT router, set the LAN IP to e.g. 10.20.0.1/24

Issue solved! If your not sure what I'm saying read up on CIDR.