I am also observing the same error. in below configuration A.B.C.D is my public IP
My kamailio configuration ------------------------------------------------------------------------------------------ #!ifdef WITH_NAT #!ifdef WITH_RTPENGINE # ----- rtpengine params ----- modparam("rtpengine", "rtpengine_sock", "udp:127.0.0.1:2223") #!else # ----- rtpproxy params ----- modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722") modparam("rtpproxy", "force_rtp_proxy", 1) modparam("rtpproxy", "advertised_address", A.B.C.D) #!endif # ----- nathelper params ----- modparam("nathelper", "natping_interval", 30) modparam("nathelper", "ping_nated_only", 1) modparam("nathelper", "sipping_bflag", FLB_NATSIPPING) modparam("nathelper", "sipping_from", "sip:pinger@kamailio.org") modparam("nathelper", "natping_socket", "udp:A.B.C.D:5065") modparam("nathelper", "natping_socket", "tcp:A.B.C.D:5066")
# params needed for NAT traversal in other modules modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)") modparam("usrloc", "nat_bflag", FLB_NATB) #!endif ------------------------------------------------------------------------------------------
RTP Engine ------------------------------------------------------------------------------------------ [rtpengine] table = 0 interface = internal/172.31.10.79;external/A.B.C.D listen-ng = localhost:2223 listen-cli = localhost:2224 timeout = 60 silent-timeout = 30 tos = 184 pidfile = /run/rtpengine/ngcp-rtpengine-daemon.pid fork = yes port-min = 30000 port-max = 40000 log-level = 7 log-facility = local0 kernel = no ------------------------------------------------------------------------------------------