[OpenSIPS-Users] OpenSIPS behind Static NAT (Amazon EC2)
Bogdan-Andrei Iancu
bogdan at voice-system.ro
Wed Apr 28 12:05:14 CEST 2010
Hi Brendan,
So the ACK you receive is :
U 66.90.153.244:5060 -> 10.241.38.192:5060
ACK sip:7005551212 at 10.192.162.85 SIP/2.0.
Via: SIP/2.0/UDP
192.168.1.103
;rport;branch=z9hG4bKc0a80167000001764bd73d743288072400000306.
Content-Length: 0.
Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
CSeq: 1 ACK.
From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
Max-Forwards: 70.
Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
To: <sip:
7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>;tag=as47bd2a02.
User-Agent: SJphone/1.60.299a/L (SJ Labs).
.
where 10.192.162.85 is the Asterisk IP, right ?
and you mentioned that Opensips is looping this ACK - can you post also
the ACK send out for the first time by opensips ?
Regards,
Bogdan
Brendan Sterne wrote:
> Greetings,
>
> I am experimenting with using OpenSIPS in Amazon EC2 to distribute
> calls to Asterisk instances (also running in Amazon EC2). The
> challenge is that servers on Amazon EC2 have private IPs to
> communicate with each other, but different public IPs when accessed
> from without EC2. Basically Amazon has a Static NAT setup that does
> IP translation (but not port translation). Amazon provides a public
> DNS name that resolves to the public host IP outside of Amazon EC2,
> and to the private host IP inside of Amazon EC2.
>
> I know that it is not recommended to use OpenSIPS behind a NAT, but
> I'm curious if I can make this work. Right now I'm focusing on
> inbound calls, SIP call control only (I will use nathelper / rtpproxy
> as necessary to help with media later).
>
> Here's the scenario for the invite:
> Soft Phone -------> EC2 Firewall -----> OpenSIPS -----> Asterisk
>
> The INVITE,100,200 works fine - I have opensips redirect to the
> Asterisk using
> rewritehostport(<asterisk_dns_name>);
> And I use record_route_preset() to record the Public DNS in the
> route. This will create a Route Set that will work both ways (from
> the Soft Phone, and from the Asterisk).
> record_route_preset(<opensips_dns_name>)
>
> The problem I'm having is with the ACK. It is being routed from the
> Soft Phone to the OpenSIPS via it's Amazon DNS name (ec2-204-236-245-16.compute-1.amazonaws.com
> ), but the OpenSIPS isn't recognizing the name as a local alias. I
> have alias set: alias="ec2-204-236-245-16.compute-1.amazonaws.com:
> 5060", but the opensips log shows "Topmost URI is NOT myself" (you can
> see more below). I have attached my config, logs, and a sip trace.
>
> Any suggestions are appreciated.
>
>
> My setup
> =======
>
> SJPhone, behind NAT, private IP: 192.168.1.103, public IP: 66.90.153.244
> Opensips, Amazon EC2, DNS ec2-204-236-245-16.compute-1.amazonaws.com,
> private IP 10.241.38.192, public IP 204.236.245.16
> Asterisk, Amazon EC2, DNS ec2-204-236-221-166.compute-1.amazonaws.com,
> private IP 10.192.162.85, public IP 204.236.221.166
>
>
> My opensips.cfg
> =============
>
> debug=9
> log_stderror=no
> log_facility=LOG_LOCAL0
> fork=yes
> children=4
> port=5060
> advertised_address="ec2-204-236-245-16.compute-1.amazonaws.com"
> alias="ec2-204-236-245-16.compute-1.amazonaws.com:5060"
>
> mpath="/usr/local/lib/opensips/modules/"
> loadmodule "db_mysql.so"
> loadmodule "signaling.so"
> loadmodule "sl.so"
> loadmodule "tm.so"
> loadmodule "rr.so"
> loadmodule "maxfwd.so"
> loadmodule "usrloc.so"
> loadmodule "textops.so"
> loadmodule "mi_fifo.so"
> loadmodule "uri.so"
> loadmodule "xlog.so"
>
> loadmodule "mi_xmlrpc.so"
> loadmodule "dialplan.so"
> loadmodule "nathelper.so"
> modparam("mi_xmlrpc", "port", 8000)
> modparam("mi_xmlrpc", "log_file", "/var/log/abyss.log")
> modparam("dialplan", "db_url", "mysql://<user>:<pass>@localhost/
> opensips")
> modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpproxy.sock")
>
> modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
> modparam("rr", "enable_full_lr", 1)
> modparam("rr", "append_fromtag", 0)
> modparam("uri", "use_uri_table", 0)
>
> route{
>
> xlog("L_INFO","CVAPP: route($rm/$du/$fu/$tu)");
>
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> exit;
> }
>
>
> if (!has_totag()) {
>
> xlog("L_INFO","CVAPP: initial request");
>
> # CANCEL processing
> if (is_method("CANCEL"))
> {
> if (t_check_trans())
> t_relay();
> exit;
> }
>
> t_check_trans();
>
> # record routing
> if (!is_method("REGISTER|MESSAGE")) {
> xlog("L_INFO","CVAPP: recording route");
> record_route_preset("ec2-204-236-245-16.compute-1.amazonaws.com
> ");
> }
>
> # requests for my domain
> if (uri==myself)
> {
> sl_send_reply("503", "Service Unavailable");
> exit;
> }
>
> route(1);
>
> } else {
>
> xlog("L_INFO","CVAPP: sequential request");
>
> # sequential request withing a dialog should
> # take the path determined by record-routing
> if (loose_route()) {
> xlog("L_INFO","CVAPP: loose_route was true");
> # route it out to whatever destination was
> set by loose_route()
> # in $du (destination URI).
> route(1);
> } else {
> xlog("L_INFO","CVAPP: loose_route was
> false");
> if ( is_method("ACK") ) {
> xlog("L_INFO","CVAPP: is ACK");
> if ( t_check_trans() ) {
> xlog("L_INFO","CVAPP: found
> matching transaction");
> # non loose-route, but
> stateful ACK; must be an ACK after
> # a 487 or e.g. 404 from
> upstream server
> t_relay();
> exit;
> } else {
> xlog("L_INFO","CVAPP: no
> matching transaction");
> # ACK without matching
> transaction ->
> # ignore and discard
> exit;
> }
> }
> xlog("L_INFO","CVAPP: sending 404 Not here");
> sl_send_reply("404","Not here");
> }
> exit;
> }
>
> }
>
>
> route[1] {
> xlog("L_INFO","CVAPP: in route[1]");
> xlog("L_INFO","CVAPP: rewritinghostport()");
> rewritehostport("ec2-204-236-221-166.compute-1.amazonaws.com:
> 5060");
> xlog("L_INFO","CVAPP: t_relay()");
> if (!t_relay()) {
> sl_reply_error();
> };
> exit;
> }
>
>
>
> The opensips log is:
> ----------------------
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: route(ACK/<null>/sip:192.168.1.103/sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com
> )
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:maxfwd:is_maxfwd_present: value = 1
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:uri:has_totag: totag found
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: sequential request
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:parse_headers: flags=200
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:rr:is_preloaded: is_preloaded: No
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 43==9 && [ec2-204-236-221-166.compute-1.amazonaws.com
> ] == [127.0.0.1]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 43==13 && [ec2-204-236-221-166.compute-1.amazonaws.com
> ] == [10.241.38.192]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 43==9 && [ec2-204-236-221-166.compute-1.amazonaws.com
> ] == [127.0.0.1]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 43==13 && [ec2-204-236-221-166.compute-1.amazonaws.com
> ] == [10.241.38.192]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:check_self: host != me
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 42==9 && [ec2-204-236-245-16.compute-1.amazonaws.com
> ] == [127.0.0.1]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 42==13 && [ec2-204-236-245-16.compute-1.amazonaws.com
> ] == [10.241.38.192]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 42==9 && [ec2-204-236-245-16.compute-1.amazonaws.com
> ] == [127.0.0.1]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if host==us: 42==13 && [ec2-204-236-245-16.compute-1.amazonaws.com
> ] == [10.241.38.192]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:grep_sock_info: checking if port 5060 matches port
> 5060
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:check_self: host != me
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:rr:after_loose: Topmost URI is NOT myself
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:rr:after_loose: URI to be processed:
> 'sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on'
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:rr:after_loose: Next URI is a loose router
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: loose_route was true
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: in route[1]
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: rewritinghostport()
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: CVAPP: t_relay()
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:tm:t_newtran: transaction on entrance=0xffffffff
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:parse_headers: flags=ffffffffffffffff
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:get_hdr_field: found end of header
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:parse_headers: flags=78
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:tm:t_lookup_request: start searching: hash=47354, isACK=1
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:tm:matching_3261: RFC3261 transaction matching failed
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:tm:t_lookup_request: no transaction found
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:tm:t_relay_to: forwarding ACK
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:mk_proxy: doing DNS lookup...
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:sip_resolvehost: no port, no proto -> do NAPTR lookup!
> Apr 27 15:39:37 domU-12-31-39-05-25-32 /usr/local/sbin/opensips
> [12630]: DBG:core:get_record: lookup(ec2-204-236-245-16.compute-1.amazonaws.com
> , 35) failed
>
>
>
> SIP Trace
> ========
>
> #
> U 66.90.153.244:5060 -> 10.241.38.192:5060
> INVITE sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com SIP/
> 2.0.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;rport;branch=z9hG4bKc0a80167000001764bd73d72080b9d5c00000303.
> Content-Length: 368.
> Contact: <sip:192.168.1.103:5060>.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> Max-Forwards: 70.
> To: <sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>.
> User-Agent: SJphone/1.60.299a/L (SJ Labs).
> .
> v=0.
> o=- 3481385970 3481385970 IN IP4 192.168.1.103.
> s=SJphone.
> c=IN IP4 192.168.1.103.
> t=0 0.
> a=direction:active.
> m=audio 49274 RTP/AVP 3 97 98 110 8 0 101.
> a=rtpmap:3 GSM/8000.
> a=rtpmap:97 iLBC/8000.
> a=rtpmap:98 iLBC/8000.
> a=fmtp:98 mode=20.
> a=rtpmap:110 speex/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-11,16.
>
> #
> U 10.241.38.192:5060 -> 66.90.153.244:5060
> SIP/2.0 100 Giving a try.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;rport
> =
> 5060
> ;branch
> =z9hG4bKc0a80167000001764bd73d72080b9d5c00000303;received=66.90.153.244.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> CSeq: 1 INVITE.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> To: <sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>.
> Server: OpenSIPS (1.6.2-notls (i386/linux)).
> Content-Length: 0.
> .
>
> #
> INVITE sip:7005551212 at ec2-204-236-221-166.compute-1.amazonaws.com:5060
> SIP/2.0.
> Record-Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
> Via: SIP/2.0/UDP
> ec2
> -204-236-245-16.compute-1.amazonaws.com;branch=z9hG4bKaf8b.b9ae5ba4.0.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;received
> =
> 66.90.153.244
> ;rport=5060;branch=z9hG4bKc0a80167000001764bd73d72080b9d5c00000303.
> Content-Length: 368.
> Contact: <sip:192.168.1.103:5060>.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> Max-Forwards: 69.
> To: <sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>.
> User-Agent: SJphone/1.60.299a/L (SJ Labs).
> .
> v=0.
> o=- 3481385970 3481385970 IN IP4 192.168.1.103.
> s=SJphone.
> c=IN IP4 192.168.1.103.
> t=0 0.
> a=direction:active.
> m=audio 49274 RTP/AVP 3 97 98 110 8 0 101.
> a=rtpmap:3 GSM/8000.
> a=rtpmap:97 iLBC/8000.
> a=rtpmap:98 iLBC/8000.
> a=fmtp:98 mode=20.
> a=rtpmap:110 speex/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-11,16.
>
> #
> U 10.192.162.85:5060 -> 10.241.38.192:5060
> SIP/2.0 100 Trying.
> Via: SIP/2.0/UDP
> ec2
> -204
> -236
> -245
> -16
> .compute
> -1.amazonaws.com;branch=z9hG4bKaf8b.b9ae5ba4.0;received=10.241.38.192.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;received
> =
> 66.90.153.244
> ;rport=5060;branch=z9hG4bKc0a80167000001764bd73d72080b9d5c00000303.
> Record-Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> To: <sip:7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> CSeq: 1 INVITE.
> User-Agent: Asterisk PBX 1.6.0.5.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY.
> Supported: replaces, timer.
> Contact: <sip:7005551212 at 10.192.162.85>.
> Content-Length: 0.
> .
> #
> U 10.192.162.85:5060 -> 10.241.38.192:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP
> ec2
> -204
> -236
> -245
> -16
> .compute
> -1.amazonaws.com;branch=z9hG4bKaf8b.b9ae5ba4.0;received=10.241.38.192.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;received
> =
> 66.90.153.244
> ;rport=5060;branch=z9hG4bKc0a80167000001764bd73d72080b9d5c00000303.
> Record-Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> To: <sip:
> 7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>;tag=as47bd2a02.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> CSeq: 1 INVITE.
> User-Agent: Asterisk PBX 1.6.0.5.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY.
> Supported: replaces, timer.
> Contact: <sip:7005551212 at 10.192.162.85>.
> Content-Type: application/sdp.
> Content-Length: 263.
> .
> v=0.
> o=root 998421423 998421423 IN IP4 10.192.162.85.
> s=Asterisk PBX 1.6.0.5.
> c=IN IP4 10.192.162.85.
> t=0 0.
> m=audio 14208 RTP/AVP 0 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-16.
> a=silenceSupp:off - - - -.
> a=ptime:20.
> a=sendrecv.
> #
> U 10.241.38.192:5060 -> 66.90.153.244:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;received
> =
> 66.90.153.244
> ;rport=5060;branch=z9hG4bKc0a80167000001764bd73d72080b9d5c00000303.
> Record-Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> To: <sip:
> 7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>;tag=as47bd2a02.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> CSeq: 1 INVITE.
> User-Agent: Asterisk PBX 1.6.0.5.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY.
> Supported: replaces, timer.
> Contact: <sip:7005551212 at 10.192.162.85>.
> Content-Type: application/sdp.
> Content-Length: 263.
> .
> v=0.
> o=root 998421423 998421423 IN IP4 10.192.162.85.
> s=Asterisk PBX 1.6.0.5.
> c=IN IP4 10.192.162.85.
> t=0 0.
> m=audio 14208 RTP/AVP 0 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-16.
> a=silenceSupp:off - - - -.
> a=ptime:20.
> a=sendrecv.
>
> #
> U 66.90.153.244:5060 -> 10.241.38.192:5060
> ACK sip:7005551212 at 10.192.162.85 SIP/2.0.
> Via: SIP/2.0/UDP
> 192.168.1.103
> ;rport;branch=z9hG4bKc0a80167000001764bd73d743288072400000306.
> Content-Length: 0.
> Call-ID: 993AE890-1DD1-11B2-9E7A-A4EF9DB84584 at 192.168.1.103.
> CSeq: 1 ACK.
> From: "unknown"<sip:192.168.1.103>;tag=10868511971184976398.
> Max-Forwards: 70.
> Route: <sip:ec2-204-236-245-16.compute-1.amazonaws.com;lr=on>.
> To: <sip:
> 7005551212 at ec2-204-236-245-16.compute-1.amazonaws.com>;tag=as47bd2a02.
> User-Agent: SJphone/1.60.299a/L (SJ Labs).
> .
>
> This gets sent to self in a loop.
>
>
> Cheers,
> - Brendan
>
> Brendan Sterne
> QA Lead, Callvine
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
--
Bogdan-Andrei Iancu
www.voice-system.ro
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