[SR-Users] Routing Problems

Hello, we use Kamailio 3.0 on a Red Hat EL5.4 system with openssl 0.9.8e (the current Red Hat OpenSSL version). We want to use Kamailio 3.0 in front of our Call Server (OpenSER 1.3.2) as a security gateway. So the Call Server should only deal tcp, while the Security Gateway terminates the TLS Data which he receives from the User Agents but forwards the SIP-Messages via TCP to the Call Server. UA ---SIP_over_TLS---> Security Gateway (Kam3.0) ---SIP_over_TCP---> Call Server (OpenSER1.3.2) UA<---SIP_over_TLS--- Security Gateway (Kam3.0) <---SIP_over_TCP--- Call Server (OpenSER1.3.2) Nearly everything works fine in this scenario: User Agents are able to register and when they are sending INVITES the callee receives it. The problem we have right now is: if Kamailio 3.0 receives BYE we get „477 Unfortunatly error on sending to next hop occured“. It seems that the messages are ok... I attached a text file with the BYE message and the errors. Explanation for the text file: * UA1: 192.168.0.126 * UA2: 192.168.0.176 *Security Gateway (Kam3.0): 192.168.0.89 *Call Server (OpenSER1.3.2): 192.168.0.106 Do you have any suggestions? Thank you very much in advance! Regards Andreas Dipl.-Ing. (FH) Andreas Rehbein FH Frankfurt am Main - University of Applied Sciences FB 2 - Informatik und Ingenieurwissenschaften Forschungsgruppe für Telekommunikationsnetze Kleiststraße 3 60318 Frankfurt am Main Tel.: +49 (0) 69 1533 3613 Fax: +49 (0) 69 1539 5224 961 E-Mail: <mailto:rehbein@e-technik.org> rehbein(a)e-technik.org Internet: <http://www.e-technik.org/frame_forschung.htm> http://www.e-technik.org/frame_forschung.htm