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 From:  Frederick Page <fpage at thebetteros dot oche dot de>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] Half second "feature" is also in DHCP server
 Date:  Mon, 21 Mar 2005 20:09:34 +0100
Hi Manuel,

Manuel Kasper wrote on Sun, Mar 20 2005:

>AFAIK it's normal (and even in the DHCP RFC) that DHCP clients renew
>their lease after half of the lease time has elapsed

The clients clearly see only HALF the lease-time: I have set m0n0 to
14400 (default) and 28800 (max), this is what "ipconfig /all" shows on
the XP machine (same goes for the Linux- and OpenBSD-clients):

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : oche.de
   Description . . . . . . . . . . . : Compaq NC3120 Fast Ethernet NIC
   Physical Address. . . . . . . . . : <removed>
   Dhcp Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IP Address. . . . . . . . . . . . : 192.168.100.111
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.100.100
   DHCP Server . . . . . . . . . . . : 192.168.100.100
   DNS Servers . . . . . . . . . . . : 192.168.100.100
   Primary WINS Server . . . . . . . : 192.168.100.111
   Lease Obtained. . . . . . . . . . : Monday, 21. March, 2005 19:39:10
   Lease Expires . . . . . . . . . . : Monday, 21. March, 2005 21:39:10

It's no big deal, I just enter double the values I actually mean,
thought it was a glitch.

Thanks for the answer and kind regards

Frederick