Short Question: I’m not understanding, what the caller id number is doing.
Explanation:
We’re trying to setup two L2TP Tunnels over 1 Public IP. (only L2TP, no VPN)
The two L2TP Tunnels come from different mikrotik hotspots and the Public IP is bound to a fritzbox.
Everything is alright, except that the second L2TP Tunnel doesn’t get up.
It’s not a connection problem, the client and server exchange L2TP packets, but the tunnel isn’t starting.
So we noticed that the caller-id shows us the public IP from the fritzbox and there’s another option called number.
But if we turn it to number, no L2TP client is using a caller-id anymore.