Well I have a Pix and a Windows server on my protected network.
Since I made the upgrade from windows 2000 to Windows 2003 (SP2), the time server lost his connection with the remote time server.
This transition from Windows 2000 to windows 2003 means indeed a transition from SNTP to NTPv3.
With Whireshark on the unprotected side of the Pix, the NTP pass nicely to the time server but I don't indeed receive an answers anymore from the remote time server.
On the other hand, if I put my Windows 2003 test server on the unprotected side of the Pix, the time server works.
But If I put that test server on the protected side of the pix, it doesn't work anymore.
So does somenone know about a problem of latency, hop of smth that the Pix could induce on a connection (type symetric active) to a remote time server? And maybe, what I could do about it?
NB: I attached the whireshart sampling of my ntp request.