[strongSwan] Setup site-to-site VPN via central server

[Tobias Brunner]

Hi Martin,

> I am a bit lost here. Is this a routing or an iptables issue and how can 
> I make sure the vpn-second connection is working if I resolve the issues 
> (how do I test the tunnel from vpn-second network back to vpn-second)?

Could be any number of things.  You should check the traffic counters in
`ipsec statusall` on the hub and the clients.  If you have firewall
rules check the counters in `iptables -v -L`.

Regards,
Tobias