I am confused about DHCP

[Tim]

John Cornelius:
>> The problem arises because you seem to have an impractically long lease
>> time. Note that the lease issued on 2008/06/11 doesn't expire until
>> 2008/06/18 so your lease time seems to be 7 days. Most DHCP servers only
>> issue leases for 24 hours and those are renewed by the client after
>> (typically) 12 hours.

I don't see any particular problem with long leases.  I use them, it's
useful on networks where machines only connect sporadically, but you'd
still like them to use the same address as last time.

A lease isn't a guarantee.  A client will usually get the same IP, if
possible, but the server can re-use an IP if something else needs it and
doesn't have any previously unallocated ones spare.  A client can also,
still, get assigned the same IP after a lease has expired.


Antonio M:
> What is different between a Fedora computer and a Windows computer???

See if the DHCP server still stores lease data in /var [1], like it used
to back on Fedora Core 4.  If so, you'll see that the Windows clients
*also* give the server a UID.

1. /var/lib/dhcp/dhcpd.leases


-- 
[tim at localhost ~]$ uname -r
2.6.25.6-55.fc9.i686

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