Comment 4 for bug 1830376

I´m using IPv4 as far as I know. At least my IP address has four numbers in it…
Output when I´m connected to the internet:

[LAN] Started an IPv4 socket on UDP port 7394.
[LAN] Started an IPv6 socket on UDP port 7394.
[LAN] Will broadcast to 192.168.2.255.
[LAN] Will broadcast for IPv6.
[Host]: starting up.
[NetHost]: Opening a listening IPv4 socket on TCP port 7396
[NetHost]: Opening a listening IPv6 socket on TCP port 7396
[LAN] Started an IPv4 socket on UDP port 7395.
[LAN] Started an IPv6 socket on UDP port 7395.
[LAN] Will broadcast to 192.168.2.255.
[LAN] Will broadcast for IPv6.
Initializing economy serial
lastserial: 0

Instructions how to reproduce on Ubuntu 19.04:
– Disable WLAN (if present) and use a LAN cable. Check that you can open websites etc.
– Start Widelands. Multiplayer works correctly.
– Return to the main menu
– Pull out the LAN cable
– Try to start a MP game, and you get the output in #2
– Re-insert the LAN cable and check that you can open websites etc
– Multiplayer works correctly again