Configuration of the VPN tunnel has been completed by now. At this point, it is recommended to test availability of the remote hosts from each end of the tunnel (from both local networks).

For example, the ping or/and tracert operating system commands can be used for this testing. It is recommended to test availability of remote hosts both through IP addresses and DNS names.

If a remote host is tested through IP address and it does not respond, check configuration of the traffic rules or/and find out whether the subnets do not collide (i.e. whether the same subnet is not used at both ends of the tunnel).

If an IP address is tested successfully and an error is reported (Unknown host) when a corresponding DNS name is tested, then check configuration of the DNS.

Note: VPN clients connecting to the headquarters server can access both the headquarters and the branch office (the access is not limited by any restrictions). Therefore, it is recommended to test connection to both networks also from the VPN client.