@miconda , Yes i am adding and removing on the fly. I am adding(using ka_add_destination) to KA list on successful registration and removing(using ka_del_destination) when registration expires. ```
#####################KEEPALIVE####################################### modparam("keepalive", "ping_interval", 20) modparam("keepalive", "delete_counter", 5) modparam("keepalive", "ping_from", "sip:keepalive@fromsbc")
request_route {
##ON RECIEVING OPTIONS FROM KA MODULE ON 9090 PORT, Set $du using handle_ruri_alias , replace tp with transport and relay it to edge proxy from which we recieved register packet if ($Rp == "9090" && is_method("OPTIONS")){ if (t_newtran()) { if (handle_ruri_alias()){ $avp(request_uri)= $ru ; $avp(pb-ip)=$(avp(request_uri){param.value,pb-ip}); if (is_ipv6($avp(pb-ip))) { if (subst_uri('/^sip:(.*)@(.*);pb-ip=(.*);pb-pt=(.*);tp=(.*)$/sip:\1@[\3]:\4;pb-ip=\3;pb-pt=\4;transport=\5/i')){ xlog("L_INFO","(KA OPTIONS) : ($avp(uuid)) : Destination URI <$du> created from alias."); t_relay(); }
} else { if (subst_uri('/^sip:(.*)@(.*);pb-ip=(.*);pb-pt=(.*);tp=(.*)$/sip:\1@\3:\4;pb-ip=\3;pb-pt=\4;transport=\5/i')){ xlog("L_INFO","(KA OPTIONS) : ($avp(uuid)) : Destination URI <$du> created from alias."); t_relay(); }
}
}
exit; }
$du=sip:APPLICATION_SERVER_IP:5060; ##IP of application server ( Freeswitch) to which kamailio will relay register packet add_contact_alias(); t_on_reply("reply_register") if (!t_relay()) { sl_reply_error(); } exit; } onreply_route[reply_register ]{ if ((status=~"200") && $rm=="REGISTER" && $(avp(c_ct){param.value,expires}) != 0) { ## On receiving fresh registration (i.e with expires !=0) , Kamailio will register a contact address for that registration in KA module ping registry. $avp(ka_contact) = 'sip:'+$fU+'@LOCAL_IP:9090;alias='+$(avp(c_ct){param.value,alias})+';pb-ip='+$(avp(c_ct){param.value,pb-ip})+';pb-pt='+$(avp(c_ct){param.value,pb-pt})+';tp='+$(avp(c_ct){param.value,transport}{s.rm,>}); ka_add_destination("$avp(ka_contact)","config"); }
if ((status=~"200") && $rm=="REGISTER" && $(avp(c_ct){param.value,expires}) == 0) {
$avp(ka_contact) = 'sip:'+$fU+'@LOCAL_IP:9090;alias='+$(avp(c_ct){param.value,alias})+';pb-ip='+$(avp(c_ct){param.value,pb-ip})+';pb-pt='+$(avp(c_ct){param.value,pb-pt})+';tp='+$(avp(c_ct){param.value,transport}{s.rm,>}); ka_del_destination("$avp(ka_contact)","config"); }
} ```
@NGSegovia , I am adding destinations from CFG file.