Description

When auto_bind_ipv6 is enabled on a system without ipv6, kamailio starts, enumerates all interfaces but does not perform no listening at all. In addition, no errors are reported, see below from final part of boot log, no other infos are logged.

While this can be worked around by putting that config value behind a definition and autodetection by an external script, should not it work and just start on ipv4 if ipv6 is not available?

Troubleshooting

Reproduction

Just start Kam as root, with no listen directives (to let it listen on all ipv4) and auto_bind_ipv6 set to 1.

Log Messages

 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If:       lo Fam:        2 Flg:            10049 Adr: 127.0.0.1
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: enp81s0u1u4 Fam:        2 Flg:            11043 Adr: 192.168.1.222
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: wlp0s20f3 Fam:        2 Flg:            11043 Adr: 192.168.1.196
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: br-65b842ff8266 Fam:        2 Flg:             1003 Adr: 192.168.49.1
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: br-kamnet Fam:        2 Flg:            11043 Adr: 172.23.42.1
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: br-f1829eb65bac Fam:        2 Flg:             1003 Adr: 172.18.0.1
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If: br-f521fee918b4 Fam:        2 Flg:             1003 Adr: 172.19.0.1
 0(1) DEBUG: <core> [core/socket_info.c:1764]: add_interfaces(): If:  docker0 Fam:        2 Flg:             1003 Adr: 172.17.0.1
 0(1) DEBUG: <core> [core/socket_info.c:1507]: build_iface_list(): received 728 byles 
 0(1) DEBUG: <core> [core/socket_info.c:1507]: build_iface_list(): received 20 byles 
 0(1) DEBUG: <core> [core/socket_info.c:1510]: build_iface_list(): done receiving netlink info 
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 1 (n: 0)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '127.0.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '127.0.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is lo
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 3 (n: 1)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '192.168.1.222'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '192.168.1.222'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is enp81s0u1u4
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 4 (n: 2)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '192.168.1.196'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '192.168.1.196'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is wlp0s20f3
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 5 (n: 3)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '192.168.49.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '192.168.49.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is br-65b842ff8266
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 6 (n: 4)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '172.23.42.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '172.23.42.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is br-kamnet
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 7 (n: 5)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '172.18.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '172.18.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is br-f1829eb65bac
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 8 (n: 6)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '172.19.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '172.19.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is br-f521fee918b4
 0(1) DEBUG: <core> [core/socket_info.c:1542]: build_iface_list(): trying network interface index: 9 (n: 7)
 0(1) DEBUG: <core> [core/socket_info.c:1559]: build_iface_list(): iface <IFA_ADDRESS> address is '172.17.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1569]: build_iface_list(): iface <IFA_LOCAL> address is '172.17.0.1'
 0(1) DEBUG: <core> [core/socket_info.c:1573]: build_iface_list(): iface name is docker0
 0(1) DEBUG: <core> [core/socket_info.c:1507]: build_iface_list(): received 1740 byles 

Additional Information

• Kamailio Version - output of kamailio -v

head of 5.8 branch as of today

• Operating System:

ubuntu noble (in a docker container)

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