Listening at interface does not work either:
$ ip addr ... 2: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 6c:29:95:7d:37:e6 brd ff:ff:ff:ff:ff:ff inet 192.168.43.98/24 brd 192.168.43.255 scope global wlp1s0 valid_lft forever preferred_lft forever inet6 fe80::6e29:95ff:fe7d:37e6/64 scope link valid_lft forever preferred_lft forever
config line:
listen=wlp1s0:5060
omits inet6 address of the interface:
Apr 21 21:55:05 salmon sip-proxy[10903]: Listening on Apr 21 21:55:05 salmon sip-proxy[10903]: udp: 192.168.43.98 [192.168.43.98]:5060 Apr 21 21:55:05 salmon sip-proxy[10903]: tcp: 192.168.43.98 [192.168.43.98]:5060 Apr 21 21:55:05 salmon sip-proxy[10903]: tls: 192.168.43.98 [192.168.43.98]:5061
This starts to look like a bug.
-- Juha