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DHCPINFORM / DHCPACK appearing every few hours in syslog

Posted on 2006-07-18
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Last Modified: 2008-01-09
Hello,

hcpd: isc-dhcpd-V3.0.1
clients: Windows XP Pro

I have the default lease time set to 7 days. However, I'm seeing DHCPINFORM messages for each client every few hours. I would only expect to see one after 3.5 days.

Does anyone know why this is?

Thanks,
Steve :)
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Question by:sda100
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6 Comments
 
LVL 22

Expert Comment

by:pjedmond
ID: 17128545
This is because the WINS current database maintenance is done using DHCPInform and DHCPACK Packets.

Hence the requirement for much more regular appearances of these packets:

http://207.46.19.60/technet/itsolutions/network/evaluate/technol/tcpipfund/tcpipfund_ch12.mspx

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LVL 9

Author Comment

by:sda100
ID: 17129726
Thanks for the answer pjedmond, but I'm not running a WINS server, just Samba (WINS disabled).

Steve :)
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LVL 22

Accepted Solution

by:
pjedmond earned 2000 total points
ID: 17131128
...yes - I agree, but you have XP systems on the network. If you are not running a WINS server, the XP systems will negotiate amongst themselves and run an distributed WINS capability anyway. This a a 'feature' of XP:)

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0
 
LVL 9

Author Comment

by:sda100
ID: 17131176
Damn those pesky features!

So, assuming I have no DHCP problems that I want to know about, the only way to stop this is to prevent syslog from logging them?

Steve :)
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