option 51 ' dhcp-lease-time' vs other lease time statements
Aaron Bennett
abennett at clarku.edu
Tue Sep 19 14:46:41 UTC 2006
Hello,
I'm working on a large script to migrate from win2k dhcp to isc dhcp. (
the one in contrib doesn't work on win2k, the registry stuff changed
from nt4 )
Each scope from Win2K ( in isc terms, 'pool') defines option 51. They
call it "Lease" and describe it as "Client IP address lease time in
seconds", but it's option value is 51 which is 'dhcp-lease-time' in isc
and rfc world. The isc dhcp.conf examples I've seen, rather then using
option dhcp-lease-time, use 'default-lease-time,' 'max-lease-time,' and
'min-lease-time.'
What's the difference? What exactly does option 51 do and how does that
compare to the other ways to specify a lease time? What I'm looking for
is the migrate the exact _intent_ of the Win2K configuration
intelligently into isc-world.
( I'll contribute the script back to isc when it's done -- finished
product will handle both config & lease database )
Best,
Aaron Bennett
--
Aaron Bennett
Sr. Unix Systems Administrator
Clark University ITS
abennett at clarku.edu | 508.781.7315
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