Dual WAN with 2 separate subnets

iggylee · May 31, 2015, 7:09am

Hi guys… hope you can give me some hand on my query.

I’m having some issues making my scenario work.

Appreciate some feedback whether is it possible to get this going - here it goes:

Hardware - RB450G / RouterOS 6.28

ETH1 - ISP-WAN-1 (DHCP)
ETH2 - ISP-WAN-2 (DHCP)

ETH4 - 192.168.67.0/24 (NAT from ETH2)
ETH5 - 192.168.66.0/24 (NAT from ETH1)

I’ve looked at & tried quite a few articles with regards to the above on policy based routing using mangle rules but to no avail.

Not sure whether much as changed from 5.26.

Basically, I’d like all client traffic from 66 to go to ETH1 and 67 to ETH2.

DNS also should be able to resolve as each provider has their own DNS servers and are issued to clients via the 450G’s DHCP server.

Thanks for looking! Hope to get some input as i’m truly stumped getting this to work.

TrollMan · May 31, 2015, 7:23am

You need to use a dhcp update script for wan also

iggylee · May 31, 2015, 9:42am

Hmm.. script?

i’ve followed almost every guide out there - but i don’t seem to get traffic routed correctly - until i set a default route for either ISP.

Anyone care to elaborate or point me to a working example?