Lately I experienced infinite redirection with this add-on. After a while I recalled that it is connected with my subnet mask. The "most popular" subnet mask 255.255.255.0 works. Recently I needed to connect two subnets together (192.168.0.x and 192.168.1.x). I changed the subnet mask to tightest value: 255.255.252.0. The largest possible subnet 255.255.0.0 doesn't work too.