NTP uses UDP, server resides on port 123, clients on random ports > 1023.

Andy Leaning

""Mcfadden, Chuck""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> A friend of mine was doing a PIX installation on the edge of a W2K
> environment.  He was trying to allow NTP through the PIX but it would not
> go.  He found that, since he was using an inbound ACL, the packet would
> eventually reach the explicit deny.  According to his research, he had to
> allow port 123 (NTP) in his ACL in able to allow it through the firewall,
> even though it was established.  The question that has since been
> unanswered:  Does NTP use UDP or TCP or both?  Any ideas?
> ccie1ab (chuck)




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