I am using SonicWall NSA 2400 in my organization. We configured two different lans in x0 and x3 interfaces. Initially we have only one Internet line which we configured in x2 and both the lan interfaces uses the internet line. Now we have a backup line from another provider.
I have to do NAT as below:
LAN x0 -> x2 TaTa
LAN x3 -> x4 AirTel
Now I am confusing how to NAT voip lan(x3) to new interface (x4).