Hi all
I want to setup IP failover for Kamailio:

I have 2 hosts A (IP: X.X.X.32) and B (X.X.X.36), with 2 running kamailios.
Using Keepalive to setup IP failover as , virtual IP is X.X.X.43.

On host A, kamailio was binded to listen=udp:0.0.0.0:5060 and host A is MASTER with virtual IP

Problem is: Client send REGISTER to X.X.X.43:5060. It recieved 401 respond from X.X.X.32:5060 (actual IP of A), not as expected from X.X.X.43:5060

(To check if keepalived setting OK or not, I have nc -l 5060 on host A, and using nc X.X.X.43 5060 on client, wireshark show that responds is from X.X.X.43 -> keepalived work OK

Is there any difference between kamailio and nc cause they both bind to 0.0.0.0, but repond on differ IP?

Thanks

Vinh Nguyen