As a hotfix we used options ``` tcp_source_ipv4 = IPv4 address tcp_source_ipv6 = IPv6 address ``` https://www.kamailio.org/wiki/cookbooks/5.4.x/core#tcp_source_ipv4_tcp_sourc...
This works if all Kamailio sockets are bound to one IP. To get it working for multiple IPs we try to make such a change ```diff diff --git a/src/main.c b/src/main.c index 4ee5afe9d0..3670a8e826 100644 --- a/src/main.c +++ b/src/main.c @@ -1600,6 +1601,7 @@ int main_loop(void) (sendipv6_tcp->flags&(SI_IS_LO|SI_IS_MCAST))) && (si->address.af==AF_INET6)) sendipv6_tcp=si; + tcp_set_src_addr(&si->address); } /* the number of sockets does not matter */ cfg_register_child(tcp_children_no + 1 /* tcp main */);