Yup, that's expected to happen. ACK is sent to Contact header of 200 OK. So, if you mess up with it, then unexpected results will happen, as in your case you are perhaps setting Contact address of 200 OK pointing to opensips itself, instead of destination party, so ACK will obviously loop as expected.
Thank you. On Mon, Mar 18, 2013 at 5:55 PM, Nick Khamis <[email protected]> wrote: > Hello Everyone, > > We are changing the "Contact" header in the on_reply to a public ip > address using: > > onreply_route[1] { > xlog("incoming reply\n"); > if (has_body("application/sdp")) { > remove_hf("Contact"); > append_hf("Contact: > <sip:[email protected]>\r\n"); > append_hf("P-hint: Onreply-route - > fixcontact \r\n"); > > } > } > > When doing so, ACK is going into a loop: > > U 2013/03/18 13:42:11.021017 75.15.201.2:5060 -> 192.168.2.5:5060 > ACK sip:75.15.201.2;lr;did=b03.4af9f8f3 SIP/2.0. > Call-ID: [email protected]. > CSeq: 102 ACK. > From: "15178334003" <sip:[email protected]>;tag=91641. > To: <sip:[email protected]>;tag=2643FD58-346926A7. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 75.15.201.2;branch=z9hG4bKcd1e.d68abdc.2. > Via: SIP/2.0/UDP 7 > > > Your help is greatly appreciated, > > Nick. > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > -- Mit freundlichen Grüßen Muhammad Shahzad ----------------------------------- CISCO Rich Media Communication Specialist (CRMCS) CISCO Certified Network Associate (CCNA) Cell: +49 176 99 83 10 85 MSN: [email protected] Email: [email protected]
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