Sonicwall 2040 VPN Configuration - Connect to downstream router on remote side....

My organization has two offices. One office is located in NJ and the other is located in NY. The private network in NJ is 10.0.1.0/24 and the private network in NY is 10.0.2.0/24.

We are using 2 Sonicwall 2040's with Enhanced to establish a VPN. In New york, we have a t1 to a vendor. the vendor's ethernet address is

The vendor should be doing NAT. Their Network ID is 223.223.223.0/24

I need to connect to a server on their network with an ip of

What do I need to do? Routes, NAT Policy.....

Thanks in Advance....