David,
Academic or not, the source port was specified as 123 in order to make
symmetric modes (active and passive) work. The operative NTPv4
specification says the source port in other modes can be anything.
Dave
David Woolley wrote:
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Danny Mayer) wrote:
As I recall, the protocol requires that the source port be 123 but the
There is one mention of 123 in RFC 1305, but several places where it
says that the response is sent to the actual source port (RFC 1305 is
an atypical RFC, being written as an academic research paper, and that
sort of detail seems to be peripheral to the main, maths, content).
ntpd reference server implementation does not enforce that. I don't
For several years now, it has been almost essential that it does respond
to client requests from other ports, because of network address translation.
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