For what it is worth, rfc4291 section 2.5.2 indicates that the "unspecified address must not be used as the destination address of IPv6 packets or in IPv6 Routing headers".
> -----Original Message----- > From: Brett Tate > Sent: Monday, February 07, 2011 7:10 AM > To: 'bindukumari.r'; sip-implementors@lists.cs.columbia.edu > Subject: RE: [Sip-implementors] Query on Handling of null ipv6 address > in SDP c= line. > > > What must be done when NULL IPv6 address in received > > in SDP c= line, > > No MUST behavior has been defined for the situation; it is not a hold. > > The UAS received a request to communicate with a non > reachable/responsive location. If the UAS responds prior to the > connection attempt, the UAS will likely send a 200 response with SDP > reflecting typical offer/answer rules. The non reachable/responsive > location may subsequently cause the call to be released; however the > UAS might be more forgiving if some media attributes (such as > "inactive" and "sendonly") were used. _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors