[ntp:questions] Re: server's address in ntp payload?

David Schwartz davids at webmaster.com
Fri Nov 18 19:35:48 UTC 2005

"Danny Mayer" <mayer at gis.net> wrote in message 
news:437D4371.2090004 at gis.net...

> No it is not a flaw in the protocol design. It would be if it were put
> in. The address doesn't belong there, it belongs in the IP header which
> the receiving server always gets.

    It is a flaw. Its absence requires the receiver to assume that the 
origin address of the UDP packet received is the IP address of the sending 
server. This assumption may or may not be correct. But if the address were 
in there, the assumption would not be needed.


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