I have a sonicwall TZ-190 with a wan and an opt external interface. The DNS Servers are different for each interface. I need to setup my DNS Server on the LAN to use the sonicwall as a DNS proxy and as I have load balancing on this firewall the sonicwall will have to forward to the appropriate DNS Server depending on which interface it sends the forwarded request out on. When I do an nslookup and set the server to the lan interface of the sonicwall I get no reply. Is this possible?