When a new connection is made through a NAT device, the NAT opens up a new port. UDP packets, as used by NTP, appear to be their own respective new connections for each query (the timeout for UDP in the mapping tables is usually low). While some NAT devices use randomized ports, it is common for them to use sequentially ascending ports as well. Thats what you're seeing.

-Jeff

Hmm... we've used various Sonicwall devices here for ages, both with pool servers with NAT and clients with NAT, and never seen an issue. So it is probably not a default Sonicwall configuration that is the issue.

On Mon, Nov 24, 2008 at 5:04 AM, William J. Carlson <[EMAIL PROTECTED]> wrote: I had similar issues(http://fortytwo.ch/mailman/pipermail/timekeepers/2005/001633.html ). It was caused by sonicwall firewalls in every case I was able to get the admin to respond.
Thanks,
Will

--
RPM

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