In my RV50, I have two simple GRE tunnels set up on VPN 1 and VPN 2. They both point to the same Remote IP. Their only difference is the Remote Subnet: VPN 1 is 10.0.2.0/24, VPN 2 is 10.0.5.0/24. Both tunnels show a Status of “Connected”.
Using firmware 4.7 and 4.8, the modem and the private network behind it (10.0.3.32/27) is only reachable if I connect from a PC in the VPN 1 subnet (10.0.2.0/24). The modem and the private network behind it is not reachable if I connect from a PC in the VPN 2 subnet (10.0.5.0/24).
As a test, I swapped the Remote Subnets between VPN 1 and VPN 2. After the swap, the modem responded to a 10.0.5.0/24 PC, but not the 10.0.2.0/24 PC. In other words, the problem followed the RV50’s VPN “slot”, not the subnet. This seems to prove that it is not my configuration that is faulty, and is, instead, an issue with the firmware.
By the way, this same exact setup (two GRE tunnels with these same exact properties) has been working fine for years on two other Raven XE’s. Only our new RV50 exhibits this problem.