Description

Saving contact location details for IPV6 client via UDP results in a IPv4 notation. Changing to TCP correctly saves the IPV6 notation and functions correctly.

Troubleshooting

Tested on 4.4 / 4.5 & Devel. Default and custom configuration

Reproduction

Using default configuration the contact location for a IPv6 UDP client is saved as a shortened v4 style address. Using TCP with exact same configuration the client is correctly saved in IPV6 notation.

Debugging Data

May 23 03:29:50 localhost /usr/local/sbin/kamailio[32104]: DEBUG: [core/udp_server.c:493]: udp_rcv_loop(): received on udp socket: (106/100/528) [[REGISTER sip:voip.domain.com SIP/2.0 0D 0A Via: SIP/2.0/UDP 32.1.128.4:52692;rport;branch=z9hG4bKPj]]

May 23 03:29:50 localhost /usr/local/sbin/kamailio[32104]: DEBUG: {1 8093 REGISTER nTrprYhDHmupMBiLT6fuYVwvy31d0YPB} [core/socket_info.c:641]: grep_sock_info(): checking if host==us: 39==33 && [2001:8004:13C1:7751:7999:6FB5:216D:A4A8] == [2400:8907:0:0:F03C:92FF:FE22:XXXX]

Log Messages

syslog.log

SIP Traffic

Additional Information

• Kamailio Version - output of kamailio -v

version: kamailio 5.5.0 (x86_64/linux) ef765d
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: ef765d
compiled on 03:53:39 May 23 2021 with gcc 8.3.0

version: kamailio 5.5.0 (x86_64/linux) ef765d
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: ef765d
compiled on 04:15:07 May 23 2021 with gcc 8.3.0

• Operating System:

4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64 GNU/Linux

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