Kamailio behind NAT + FWD to Asterisk

ngrep -W byline -d any -t -q -p "" port 5080
interface: any
filter: (ip or ip6) and ( port 5080 )

U 2014/03/19 10:58:44.191336 PUB.LIC.IP.USER:30724 -> 192.168.182.23:5080
INVITE sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport;branch=z9hG4bKPjlyObdurR-CkcTvFY6IPLlrcYQT3UaXyo.
Max-Forwards: 70.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>.
Contact: "102" <sip:102@192.168.10.240:49573;ob>.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17138 INVITE.
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS.
Supported: replaces, 100rel, timer, norefersub.
Session-Expires: 1800.
Min-SE: 90.
User-Agent: Telephone 1.1.4.
Content-Type: application/sdp.
Content-Length:   488.
.
v=0.
o=- 3604208067 3604208067 IN IP4 192.168.10.240.
s=pjmedia.
b=AS:84.
t=0 0.
a=X-nat:0.
m=audio 4046 RTP/AVP 103 102 104 109 3 0 8 9 101.
c=IN IP4 192.168.10.240.
b=TIAS:64000.
a=rtcp:4047 IN IP4 192.168.10.240.
a=sendrecv.
a=rtpmap:103 speex/16000.
a=rtpmap:102 speex/8000.
a=rtpmap:104 speex/32000.
a=rtpmap:109 iLBC/8000.
a=fmtp:109 mode=30.
a=rtpmap:3 GSM/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:9 G722/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.


U 2014/03/19 10:58:44.192132 192.168.182.23:5080 -> PUB.LIC.IP.USER:30724
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport=30724;branch=z9hG4bKPjlyObdurR-CkcTvFY6IPLlrcYQT3UaXyo;received=PUB.LIC.IP.USER.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=39ef3efa5e57d69f0598c3364123115c.1129.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17138 INVITE.
Proxy-Authenticate: Digest realm="PUB.LIC.HOSTNAME.HERE", nonce="UyldcFMpXEQOE1O5rMKsW/3KHAnxTizY".
Server: kamailio (4.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2014/03/19 10:58:44.233068 PUB.LIC.IP.USER:30724 -> 192.168.182.23:5080
ACK sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport;branch=z9hG4bKPjlyObdurR-CkcTvFY6IPLlrcYQT3UaXyo.
Max-Forwards: 70.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=39ef3efa5e57d69f0598c3364123115c.1129.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17138 ACK.
Content-Length:  0.
.


U 2014/03/19 10:58:44.233685 PUB.LIC.IP.USER:30724 -> 192.168.182.23:5080
INVITE sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
Max-Forwards: 70.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>.
Contact: "102" <sip:102@192.168.10.240:49573;ob>.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS.
Supported: replaces, 100rel, timer, norefersub.
Session-Expires: 1800.
Min-SE: 90.
User-Agent: Telephone 1.1.4.
Proxy-Authorization: Digest username="102", realm="PUB.LIC.HOSTNAME.HERE", nonce="UyldcFMpXEQOE1O5rMKsW/3KHAnxTizY", uri="sip:101@PUB.LIC.HOSTNAME.HERE:5080", response="408aa40f4baf471234b645a9980ea383".
Content-Type: application/sdp.
Content-Length:   488.
.
v=0.
o=- 3604208067 3604208067 IN IP4 192.168.10.240.
s=pjmedia.
b=AS:84.
t=0 0.
a=X-nat:0.
m=audio 4046 RTP/AVP 103 102 104 109 3 0 8 9 101.
c=IN IP4 192.168.10.240.
b=TIAS:64000.
a=rtcp:4047 IN IP4 192.168.10.240.
a=sendrecv.
a=rtpmap:103 speex/16000.
a=rtpmap:102 speex/8000.
a=rtpmap:104 speex/32000.
a=rtpmap:109 iLBC/8000.
a=fmtp:109 mode=30.
a=rtpmap:3 GSM/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:9 G722/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.


U 2014/03/19 10:58:44.234857 192.168.182.23:5080 -> PUB.LIC.IP.USER:30724
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport=30724;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO;received=PUB.LIC.IP.USER.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Server: kamailio (4.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2014/03/19 10:58:44.235537 192.168.182.23:5080 -> 192.168.182.24:5060
INVITE sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Record-Route: <sip:PUB.LIC.IP.HERE:5080;lr=on;ftag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X;nat=yes>.
Via: SIP/2.0/UDP PUB.LIC.IP.HERE:5080;branch=z9hG4bKb6e4.e40021aa0998c74c40f9bfa73d01159b.0.
Via: SIP/2.0/UDP 192.168.10.240:49573;received=PUB.LIC.IP.USER;rport=30724;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
Max-Forwards: 16.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>.
Contact: "102" <sip:102@PUB.LIC.IP.USER:30724;ob>.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS.
Supported: replaces, 100rel, timer, norefersub.
Session-Expires: 1800.
Min-SE: 90.
User-Agent: Telephone 1.1.4.
Content-Type: application/sdp.
Content-Length:   486.
.
v=0.
o=- 3604208067 3604208067 IN IP4 PUB.LIC.IP.HERE.
s=pjmedia.
b=AS:84.
t=0 0.
a=X-nat:0.
m=audio 25506 RTP/AVP 103 102 104 109 3 0 8 9 101.
c=IN IP4 PUB.LIC.IP.HERE.
b=TIAS:64000.
a=rtcp:25507.
a=sendrecv.
a=rtpmap:103 speex/16000.
a=rtpmap:102 speex/8000.
a=rtpmap:104 speex/32000.
a=rtpmap:109 iLBC/8000.
a=fmtp:109 mode=30.
a=rtpmap:3 GSM/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:9 G722/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=nortpproxy:yes.


U 2014/03/19 10:58:44.236622 192.168.182.24:5060 -> 192.168.182.23:5080
NOTIFY sip:102@192.168.182.23:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK097e2e78;rport.
Max-Forwards: 70.
From: "asterisk" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=as6cdf3f80.
To: <sip:102@192.168.182.23:5080>.
Contact: <sip:102@192.168.182.24:5060>.
Call-ID: 5e3925680075565f344f16112944b632@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 NOTIFY.
User-Agent: Asterisk PBX 12.1.1.
Event: message-summary.
Content-Type: application/simple-message-summary.
Content-Length: 105.
.
Messages-Waiting: no.
Message-Account: sip:asterisk@PUB.LIC.HOSTNAME.HERE.
Voice-Message: 0/0 (0/0).


U 2014/03/19 10:58:44.237248 192.168.182.23:5080 -> 192.168.182.24:5060
SIP/2.0 404 Not Found.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK097e2e78;rport=5060.
From: "asterisk" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=as6cdf3f80.
To: <sip:102@192.168.182.23:5080>;tag=c7fde361f7b0031aabe9f5598dc7f9f1-c901.
Call-ID: 5e3925680075565f344f16112944b632@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 NOTIFY.
Server: kamailio (4.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2014/03/19 10:58:44.237539 192.168.182.24:5060 -> 192.168.182.23:5080
NOTIFY sip:101@192.168.182.23:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK13ec8f1f;rport.
Max-Forwards: 70.
From: "asterisk" <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as0e7e31c7.
To: <sip:101@192.168.182.23:5080>.
Contact: <sip:101@192.168.182.24:5060>.
Call-ID: 7ce775437e367872539924c320fb620d@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 NOTIFY.
User-Agent: Asterisk PBX 12.1.1.
Event: message-summary.
Content-Type: application/simple-message-summary.
Content-Length: 105.
.
Messages-Waiting: no.
Message-Account: sip:asterisk@PUB.LIC.HOSTNAME.HERE.
Voice-Message: 0/0 (0/0).


U 2014/03/19 10:58:44.238219 192.168.182.24:5060 -> 192.168.182.23:5080
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP PUB.LIC.IP.HERE:5080;branch=z9hG4bKb6e4.e40021aa0998c74c40f9bfa73d01159b.0;received=192.168.182.23;rport=5080.
Via: SIP/2.0/UDP 192.168.10.240:49573;received=PUB.LIC.IP.USER;rport=30724;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
Record-Route: <sip:PUB.LIC.IP.HERE:5080;lr=on;ftag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X;nat=yes>.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Server: Asterisk PBX 12.1.1.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH.
Supported: replaces, timer.
Session-Expires: 1800;refresher=uas.
Contact: <sip:101@192.168.182.24:5060>.
Content-Length: 0.
.


U 2014/03/19 10:58:44.238851 192.168.182.23:5080 -> 192.168.182.24:5060
SIP/2.0 404 Not Found.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK13ec8f1f;rport=5060.
From: "asterisk" <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as0e7e31c7.
To: <sip:101@192.168.182.23:5080>;tag=c7fde361f7b0031aabe9f5598dc7f9f1-a37d.
Call-ID: 7ce775437e367872539924c320fb620d@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 NOTIFY.
Server: kamailio (4.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2014/03/19 10:58:44.239950 192.168.182.24:5060 -> 192.168.182.23:5080
INVITE sip:101@192.168.182.23:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK1224dc00.
Max-Forwards: 70.
From: "102" <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as4c9f943a.
To: <sip:101@192.168.182.23:5080>.
Contact: <sip:101@192.168.182.24:5060>.
Call-ID: 67cbfb7246bfbfb5786726667c051f5e@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 INVITE.
User-Agent: Asterisk PBX 12.1.1.
Date: Wed, 19 Mar 2014 08:58:44 GMT.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH.
Supported: replaces, timer.
Content-Type: application/sdp.
Content-Length: 327.
.
v=0.
o=root 810014697 810014697 IN IP4 192.168.182.24.
s=Asterisk PBX 12.1.1.
c=IN IP4 192.168.182.24.
t=0 0.
m=audio 18696 RTP/AVP 0 3 8 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:3 GSM/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=silenceSupp:off - - - -.
a=ptime:20.
a=maxptime:150.
a=sendrecv.


U 2014/03/19 10:58:44.240496 192.168.182.23:5080 -> 192.168.182.24:5060
SIP/2.0 404 Not Found.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK1224dc00;rport=5060.
From: "102" <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as4c9f943a.
To: <sip:101@192.168.182.23:5080>;tag=c7fde361f7b0031aabe9f5598dc7f9f1-5140.
Call-ID: 67cbfb7246bfbfb5786726667c051f5e@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 INVITE.
Server: kamailio (4.1.2 (x86_64/linux)).
Content-Length: 0.
.


U 2014/03/19 10:58:44.240619 192.168.182.24:5060 -> 192.168.182.23:5080
ACK sip:101@192.168.182.23:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.182.24:5060;branch=z9hG4bK1224dc00.
Max-Forwards: 70.
From: "102" <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as4c9f943a.
To: <sip:101@192.168.182.23:5080>;tag=c7fde361f7b0031aabe9f5598dc7f9f1-5140.
Contact: <sip:101@192.168.182.24:5060>.
Call-ID: 67cbfb7246bfbfb5786726667c051f5e@PUB.LIC.HOSTNAME.HERE.
CSeq: 102 ACK.
User-Agent: Asterisk PBX 12.1.1.
Content-Length: 0.
.


U 2014/03/19 10:58:44.241448 192.168.182.24:5060 -> 192.168.182.23:5080
SIP/2.0 404 Not Found.
Via: SIP/2.0/UDP PUB.LIC.IP.HERE:5080;branch=z9hG4bKb6e4.e40021aa0998c74c40f9bfa73d01159b.0;received=192.168.182.23;rport=5080.
Via: SIP/2.0/UDP 192.168.10.240:49573;received=PUB.LIC.IP.USER;rport=30724;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as5de43f7d.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Server: Asterisk PBX 12.1.1.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH.
Supported: replaces, timer.
Content-Length: 0.
.


U 2014/03/19 10:58:44.241746 192.168.182.23:5080 -> 192.168.182.24:5060
ACK sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Via: SIP/2.0/UDP PUB.LIC.IP.HERE:5080;branch=z9hG4bKb6e4.e40021aa0998c74c40f9bfa73d01159b.0.
Max-Forwards: 16.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as5de43f7d.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 ACK.
Content-Length: 0.
.


U 2014/03/19 10:58:44.242085 192.168.182.23:5080 -> PUB.LIC.IP.USER:30724
SIP/2.0 404 Not Found.
Via: SIP/2.0/UDP 192.168.10.240:49573;received=PUB.LIC.IP.USER;rport=30724;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as5de43f7d.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 INVITE.
Server: Asterisk PBX 12.1.1.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH.
Supported: replaces, timer.
Content-Length: 0.
.


U 2014/03/19 10:58:44.282824 PUB.LIC.IP.USER:30724 -> 192.168.182.23:5080
ACK sip:101@PUB.LIC.HOSTNAME.HERE:5080 SIP/2.0.
Via: SIP/2.0/UDP 192.168.10.240:49573;rport;branch=z9hG4bKPjGvvoCthqLe5-qVothT.Ze-RtgpSWagKO.
Max-Forwards: 70.
From: "102" <sip:102@PUB.LIC.HOSTNAME.HERE>;tag=GFSI7TVnGUqqGAngTekzRQqVfEw-FX.X.
To: <sip:101@PUB.LIC.HOSTNAME.HERE>;tag=as5de43f7d.
Call-ID: AxzVc0f4cyCdv0dbjjdCKym5jbP-i34U.
CSeq: 17139 ACK.
Content-Length:  0.
.