I have a running Zentyal Router. Now I have created a Softether-VPN (which wraps OpenVPN basically), to connect to this network per Network-Bridge/L2-Switch. So, when I connect per VPN I am in the same 10.100.0.0/24 network, as internal/physical users.
I can reach all hosts from 10.100.0.0/24, except the router at 10.100.0.1. As a result, internet-traffic is also not routed.
traceroute one host:
$ traceroute 10.100.0.3 traceroute to 10.100.0.3 (10.100.0.3), 30 hops max, 60 byte packets 1 10.100.0.3 (10.100.0.3) 52.116 ms 57.664 ms 57.670 ms
traceroute the router:
$ traceroute 10.100.0.1 traceroute to 10.100.0.1 (10.100.0.1), 30 hops max, 60 byte packets 1 * * * 2 * * * 3 * * * 4 * * * 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * * 11 * *^C
I have search tried to allow the firewall every traffic from 10.100.0.0/24 external hosts to router or to internal networks, but it does not works.
When I am physically inside the network, routing works fine.
Update: When I enable SNAT feature, I can reach the internet, but as I am in an other network, I can't reach any host in 10.100.0.0/24.
Any ideas where I should search? What block my traffic to 10.100.0.1?