On Sun, 19 Mar 2006, Kyle Moffett wrote:
I've actually figured out where this bug is hiding. dhclient doesn't
modify the interface at all, even to set an IP. It just passes all the
info to /etc/dhcp3/dhclient-script (for Debian, may vary with distro),
which is expected to set everything up. There's some documentation
under "man dhclient-script", but it's a fairly self-explanatory shell
script. It looks like most distros use a slightly patched version based
off the example one shipped with ISC dhclient. You could probably take
a look in there to see where it excessively ifconfig ${IFACE} up and
ifconfig ${IFACE} down and patch it to do so less often.
From my Ubuntu laptop, here's the justification listed for bringing the
interface down:
# IP address changed. Bringing down the interface will delete all routes,
# and clear the ARP cache.
Maybe there's another way to make these things happen? If so, perhaps
Ubuntu and/or Debian will take a patch.
-- Asheesh.
--
What!? Me worry?
-- Alfred E. Newman
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