[c-nsp] Configure NAT to use a certain port range for source ports

Jason Lixfeld jason at lixfeld.ca
Sun Apr 15 08:59:58 EDT 2012


Hi all,

I have an inside NTP server behind an IOS NAT box that is trying to sync time from an outside NTP server.  NAT changes the source port to some low port, but due to a bug in the NTP implementation on the outside NTP server, source ports < 123 are rejected.  So - is there a way that I can configure NAT to use a high source port when the destination port is UDP/123?

Thanks in advance.


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