SER doesn't seem to be returning the Unauthorized
message to the correct
port, but it does get at least the right IP. You will notice the REGISTER
is received on 216.43.27.75:56059 but the Unauthorized is sent back to
216.43.27.75:5060. Is there any way to get SER to send back to the correct
port so symmetrical NAT will work correctly?
Yes. Use Nathelper/RTPProxy.
Andres
Network Admin
http://www.telesip.net