There are a network 192.168.0.0/24 and a different network on a second location with 192.168.50.0/24 on both networks are a router with 192.168.x.1 who route the traffic.
Now i install a new Router with 192.168.0.2 and connect with ipsec to 192.168.50.1, i can route from one net to another, but only if i add 192.168.0.2 as gateway for the network. Now i add a route from 192.168.0.1 over to 192.168.0.2 to 192.168.50.1 and it works i can ping hosts from 192.168.0.x to the 192.168.50.x but not in the other direction. So if i test the route from 192.168.50.x over 192.168.50.1 to 192.168.0.2 over 192.168.0.1 to 192.168.0.x then i can't ping the Host. What can i do that it works?