[Users] branch parameter in ACK set to zero?

Tim Madorma tmadorma at gmail.com
Wed May 30 17:13:26 CEST 2007


In testing with OpenSER 1.2 I noticed that the branch parameter of the
Via in the ACK to 200 OK has a value of zero. This does not seem
right. From 16.6 of RFC-3261:

         The proxy MUST insert a Via header field value into the copy
         before the existing Via header field values.  The construction
         of this value follows the same guidelines of Section
         This implies that the proxy will compute its own branch
         parameter, which will be globally unique for that branch, and
         contain the requisite magic cookie.

Please advise.


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