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### 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
<!--
If the issue can be reproduced, describe how it can be done.
-->
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
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Check the syslog file and if there are relevant log messages printed by
Kamailio, add them next, or attach to issue, or provide a link to download them
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-->
```
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**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu
16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `lsb_release -a` and `uname -a`)
-->
```
ubuntu noble (in a docker container)
```
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