You can use the param "NDLB-force-rport" to force it to use rport no matter what. /b On Nov 4, 2008, at 11:43 AM, David Aldworth wrote:
Hi bkw -
We did that and it does indeed fix the issue. However, in the case that you have multiple SIP UA's behind a router there tend to be many dynamically generated ports in use. The obvious solution would be to statically map a port to an internal IP and then set the externip and localhost settings. I agree, this would work. Except if you are using a dsl or cable modem provider that also like to update your WAN ip on a regular basis. But what confuses me more is that all the sip messaging works fine right up until the ACK we send back to the 200 OK. Obviously FS is sending the ACK to the Contact field IP but is there a way in FS to tell it to just respond on the IP and port that the 200 OK came from? I thought that is what the force rport setting did but i guess it does not.
David