I currently have two sonicwall TZ150's that I have a site-to-site VPN on. I am having trouble getting the main piece of equipment (RPD1000) to communicate back to one side of the network. I can ping the piece of equipment on that LAN from a pc on that LAN, also the sonicwall on that LAN. I cannot ping it from the other side of my vpn tunnel. I can however pass traffic from one side of the tunnel to the other through different devices. I have also tried adding a static arp entry into the sonicwall but still no luck. Any ideas?
The piece of equipment in question (RPD1000) what exactly is it?
Very good chance that it simply will not communicate outside of its subnet.
So if site A has subnet of 192.168.1.0 and site B has a subnet of 192.168.2.0 your device must be able to communicate with other subnets in order to pass data across the tunnel.
The way Sonicwall VPN's work they require separate subnets on each end of the tunnel.
I was faced with the same situation when attempting to network timeclock's across a VPN tunnel. Turn's out the equipment was not capable of communicating outside its subnet and thus we had to upgrade.
