tracked by:
http://sourceforge.net/tracker/index.php?func=detail&aid=1816565&group_id=139143&atid=743020
On 10/18/07, Ovidiu Sas <[EMAIL PROTECTED]> wrote:
> Hi all,
>
>
> I was playing with openser 1.3 in a multihomed setup.
> In this setup, I noticed that by default, openser is mangling the
> Contact header and the sdp.
> I stripped down the config to bare minimum to see if it was something
> related to my config, but it seems that this is not related to the
> config.
>
>
> Here's the stripped down config that I used:
> # ----------- global configuration parameters ------------------------
> debug=3
> fork=yes
> log_stderror=no
>
> check_via=no # (cmd. line: -v)
> dns=no # (cmd. line: -r)
> rev_dns=no # (cmd. line: -R)
> auto_aliases=no
> listen=udp:br0
> listen=udp:eth1
> children=1
> mhomed=1
> disable_tcp=yes
> disable_dns_blacklist=true
>
> # ------------------ module loading ----------------------------------
> mpath="/opt/lib/openser/modules"
>
> loadmodule "sl.so"
>
> loadmodule "tm.so"
> # -- tm params --
> modparam("tm", "fr_inv_timer", 100)
> modparam("tm", "fr_inv_timer_avp", "$avp(i:26)")
> modparam("tm", "fr_timer", 10)
> modparam("tm", "fr_timer_avp", "$avp(i:25)")
> modparam("tm", "noisy_ctimer", 1)
> modparam("tm", "onreply_avp_mode", 1)
>
> loadmodule "rr.so"
>
> # ------------------------- request routing logic -------------------
>
> # main routing logic
>
> route{
> if (!method=="REGISTER") {
> record_route();
> }
>
> if (loose_route()) {
> route(1);
> };
>
> if (!uri==myself) {
> route(1);
> };
>
> if (uri==myself) {
> sl_send_reply("404", "Not Found");
> exit;
> };
>
> route(1);
> }
>
> route[1] {
> if (!t_relay()) {
> sl_reply_error();
> };
> exit;
> }
>
>
>
> Here's the network setup:
>
> <asterisk box> --- < openser > --- <SIP server>
> <192.168.2.20> --- <192.168.2.1 : EXTERNAL_IP> --- <SIP_SERVER>
>
>
> And here's an ngrep of the initial INVITEs:
> 23:53:31.439678 IP 192.168.2.20.sip > 192.168.2.1.sip: SIP, length: 819
> INVITE sip:[EMAIL PROTECTED] SIP/2.0
> Via: SIP/2.0/UDP 192.168.2.20:5060;branch=z9hG4bK4f70ea70
> From: "Ovi Sas" <sip:[EMAIL PROTECTED]>;tag=as048c5bed
> To: <sip:[EMAIL PROTECTED]>
> Contact: <sip:[EMAIL PROTECTED]>
> Call-ID: [EMAIL PROTECTED]
> CSeq: 102 INVITE
> User-Agent: asterisk
> Max-Forwards: 70
> Date: Thu, 18 Oct 2007 04:23:04 GMT
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
> Supported: replaces
> Content-Type: application/sdp
> Content-Length: 285
>
> v=0
> o=root 8560 8560 IN IP4 192.168.2.20
> s=session
> c=IN IP4 192.168.2.20
> t=0 0
> m=audio 34028 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=sendrecv
>
>
>
> 23:53:31.454727 IP EXTERNAL_IP.sip > SIP_SERVER.sip: SIP, length: 1011
> INVITE sip:[EMAIL PROTECTED] SIP/2.0
> Record-Route: <sip:EXTERNAL_IP;r2=on;lr;ftag=as048c5bed>
> Record-Route: <sip:192.168.2.1;r2=on;lr;ftag=as048c5bed>
> Via: SIP/2.0/UDP EXTERNAL_IP:5060;branch=z9hG4bKea4e.7aacc885.0
> Via: SIP/2.0/UDP 192.168.2.20:5060;branch=z9hG4bK4f70ea70
> From: "Ovi Sas" <sip:[EMAIL PROTECTED]>;tag=as048c5bed
> To: <sip:[EMAIL PROTECTED]>
> Contact: <sip:[EMAIL PROTECTED]:5060>
> Call-ID: [EMAIL PROTECTED]
> CSeq: 102 INVITE
> User-Agent: asterisk
> Max-Forwards: 70
> Date: Thu, 18 Oct 2007 04:23:04 GMT
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
> Supported: replaces
> Content-Type: application/sdp
> Content-Length: 286
>
> v=0
> o=root 8560 8560 IN IP4 192.168.2.20
> s=session
> c=IN IP4 EXTERNAL_IP
> t=0 0
> m=audio 34028 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=sendrecv
>
>
> Please note the Contact header and the c= line inside SDP.
>
> Is there a way to bypass this behaviour?
> Using the nathelper module doesn't seem to help (the Contact header
> will still carry the EXTERNAL_IP.
>
>
>
> Regards,
> Ovidiu Sas
>
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