Ethereal-dev: [Ethereal-dev] Ethereal 0.9.12 - ntp dissector not showing NTP protocol version

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From: Falk Hayn <Falk.Hayn@xxxxxx>
Date: Wed, 4 Jun 2003 10:04:19 +0200 (MEST)
Dear Ladies and Sirs,

within Ethereal 0.9.12, the ntp dissector does not show the NTP protocol
version (V3 or V4) flags,

The following flags were not decoded and displayed:
LI - Leap Warning Indicator
VN - NTP protokoll Version Number
MODE - NTP mode

I noticed this effect as I was investigating a NTP problem, which was a
protocol version problem between NTP V3 server and NTP V4 client as described in
http://www.ntp.org/ntpfaq/NTP-s-trouble.htm#S-TRBL-SPEC-TRUETIME

Latelay I noticed that it is a V4 problem, because ethereal did not show the
version and I missed the idea... ;-)

I saw in the source-code of "packet-ntp.c" that all flags are defined,
but did not find the special decoce lines.
After building ethereal on HP-UX11, Sol.8 and Linux on none of these
platforms the LI, VN or MODE flasg were decoded.

I can provide sample traces from HP-UX11, Sol.8 and Linux if wanted.

I would like to ask who is responsible for the  "packet-ntp.c" and if this
person is willing to add the LI, VN and MODE flags to the decode.
With real interop. problems, these flags are the most important
informations.. ;-)

With thanks & regards F.

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