14 Apr
2010
14 Apr
'10
12:06 p.m.
Hi
I need some "guidelines" to troubleshoot the following issue:
a) A is behind NAT
b) B is not behind NAT
c) A calls B, SIP INVITE is sent over TCP
d) A's firewall does NAT and changes the source port to let's say p1
e) B releases the call and sends BYE over UDP
f) Kamailio sends the BYE to A, over UDP, to the NATed source port p1 ?!
2 comments:
- This scenario works perfectly when A is the one who disconnects the call.
and of course when no NAT is involved everything works ok
- if works when I comment the line "fix_nated_contact()" in the route[NAT]
block:
route[NAT]{
#!ifdef WITH_NAT
force_rport();
#if (nat_uac_test("19")) {
if (nat_uac_test("3")) {
if (method=="REGISTER") {
setbflag(10);
fix_nated_register();
} else {
#fix_nated_contact();
[...]
Any hint is very welcome.
Cheers
Pascal