ntpd multicast TTL
Christian Weisgerber
naddy at mips.inka.de
Sun Mar 7 16:19:08 UTC 2010
ntpd is a convenient source of multicast packets for testing purposes.
When I add
broadcast 224.0.1.1
to my ntp.conf, ntpd sends a multicast packet with TTL 1 every 64
seconds. Just as expected. However, when I explicitly specify the
TTL as in
broadcast 224.0.1.1 ttl 1
it sends packets with TTL 32. Trying a few other numbers confirms
that it multiplies the specified TTL by 32. That is not expected.
(I also don't recall this happening the last time I tried it, but
that may have been years ago.)
Is this simply a bug in ntpd?
7.3-PRERELEASE from yesterday.
--
Christian "naddy" Weisgerber naddy at mips.inka.de
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