10-12-2017
Scott's idea is valid anyway, but if i remember TCP/IP correctly (my copy of
TCP/IP Illustrated is not within reach right now) the DHCP server manages lease times, not the client.
You can also configure the DHCP server to always give the same IP-address to this client, because DHCP is the supersset of the older
bootp-protocol, which did exactly that. Clients are identified by the MAC-address(es) of the interface(s) requiring an address. This way it doesn't matter if the address is requested once or twice.
I hope this helps.
bakunin
This User Gave Thanks to bakunin For This Post:
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LEARN ABOUT NETBSD
inittodr
INITTODR(9) BSD Kernel Developer's Manual INITTODR(9)
NAME
inittodr -- initialize system time
SYNOPSIS
void
inittodr(time_t base);
DESCRIPTION
The inittodr() function determines the time and sets the system clock. It tries to pick the correct time using a set of heuristics that
examine the system's battery-backed clock and the time reported by the file system, as given in base. Those heuristics include:
o If the battery-backed clock has a valid time, and is not significantly behind the time provided by base, it is used.
o If the battery-backed clock does not have a valid time, or is significantly behind the time provided in base, and the time provided in
base is within reason, base is used as the current time.
o If the battery-backed clock appears invalid, and base appears non-sensical or was not provided (was given as zero), an arbitrary base
(typically some time within the same year that the kernel was last updated) will be used.
Once a system time has been determined, it is stored in the time variable.
DIAGNOSTICS
The inittodr() function prints diagnostic messages if it has trouble figuring out the system time. Conditions that can cause diagnostic mes-
sages to be printed include:
o There is no battery-backed clock present on the system.
o The battery-backed clock's time appears nonsensical.
o The base time appears nonsensical.
o The base time and the battery-backed clock's time differ by a large amount.
SEE ALSO
clock_ymdhms_to_secs(9), resettodr(9), time_second(9)
BUGS
Some systems use heuristics for picking the correct time that are slightly different.
BSD
September 6, 2006 BSD