Hello, I am happy to announce the new topology_hiding module.
Topology hiding is usually utilized as an approach to enhance SIP network security. Since, in regular SIP traffic, critical IP address data is forwarded to other networks, the concern is that third parties can use that information in order to direct attacks at your internal SIP network.
The new topology_hiding module strips and restores the headers that contain topology information (Via, Record-Route, Route and Contact headers) , and optionally it can also change the Call-ID of the requests.
Compared to the topology hiding solution offered by the B2B modules, it has the great advantage that it can be used together with other script functionalities that were previously incompatible ( eg. dialog vars & profiles, accounting, etc.). Compared to the previous solution of topology hiding which was integrated into the dialog module ( which only supported topology hiding for INVITE based dialogs ), the new module can work in stand-alone mode as well ( without dialog support ), thus allowing to do topology hiding for all types of dialogs ( eg. Presence dialogs ) and also for standalone initial requests ( eg. SIP MESSAGE ).
Find the module readme at [1] and a tutorial with a script example at [2]. Testing and feedback are very much welcome. [1] http://www.opensips.org/html/docs/modules/2.1.x/topology_hiding.html [2] http://www.opensips.org/Documentation/Tutorials-Topology-Hiding Best Regards, -- Vlad Paiu OpenSIPS Developer http://www.opensips-solutions.com _______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
