Hello, kamailio is agnostic of the ipsec layer, it doesn't do anything to manage ipsec, but it can get the traffic from any ipsec channel as any application on the OS does. ipsec encryption/decryption is done by the kernel. Adding/removing headers in kamailio is easy and straightforward using textops module. If you know that you have to add any Security-* header, then you can do it from kamailio.cfg with the functions from textops module. Cheers, Daniel On 04/06/15 13:35, Priyaranjan Nayak wrote: Hi All, I have a ims client endpoint supporting rfc 3329(IPSec).Now I am sending register message to kamailio server with Security-Client header and not getting any Security-Server header in response. Could you please tell me below queries - Whether kamailio server supporting rfc 3329 (IPSec) or not ? - If yes,how can we setup kamailio server to support Security-Client,Security-Server and Security-varify(as per rfc 3329) header ? Thanks Priyaranjan _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierlahttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users