Hi,
We setup an IPSec Site-to-Site VPN connection between our main office and branch office.
In the main office, we have two ISPs, each with its own router. First router has a local IP of 192.168.0.20 and the second router's (XG 230, actually) local IP is 192.168.0.2.
The branch office's router's (XG 135) local IP is 192.168.2.1. The VPN connects without any problem and computers from the branch office can successfully access computers/servers in the main office. For example, 192.168.2.60 can communicate with 192.168.0.50
Now, here's the problem. If the computer in the main office changes its default gateway to 192.168.0.20, the computers in the branch office will not be able to connect to it.
192.168.2.60 cannot access or even ping 192.168.0.52 and 192.168.0.53
192.168.0.52 and 192.168.0.53 can ping and access 192.168.2.60 due to static route configured on the first router
What do I need to do to make the computers in the main office still accessible through VPN even if I change their gateways to 192.168.0.20?
Thank you.
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