Re-activate current lease on DHCPDISCOVER

[Drew Weaver]

Maybe I didn't explain it very well.

PC boots up once.

Oct  9 08:06:24 c8 dhcpd: DHCPDISCOVER from 00:16:76:e0:d3:5b via 10.1.0.1.9
Oct  9 08:06:25 c8 dhcpd: DHCPOFFER on 10.1.0.1.10 to 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9
Oct  9 08:06:25 c8 dhcpd: DHCPREQUEST for 10.1.0.1.10 from 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9
Oct  9 08:06:25 c8 dhcpd: DHCPACK on 10.1.0.1.10 to 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9

Some presses the 'reset' button on the PC.

Oct  9 08:07:37 c8 dhcpd: DHCPDISCOVER from 00:16:76:e0:d3:5b via 10.1.0.1.9: network 10.1.0.1.8/29: no free leases

My question is, why doesn't it just reassign the same lease that it already has? Obviously it isn't using it if it is requesting a lease.

I tried the commands you suggested and it didn't seem to really solve the issue. Any more thoughts?

Thanks,
-Drew




From: dhcp-users-bounce at isc.org [mailto:dhcp-users-bounce at isc.org] On Behalf Of Brad Dameron
Sent: Wednesday, October 08, 2008 10:35 PM
To: dhcp-users at isc.org
Subject: RE: Re-activate current lease on DHCPDISCOVER

I believe someone posted this not long ago.

one-lease-per-client true;
deny duplicates;

Brad

________________________________
From: dhcp-users-bounce at isc.org on behalf of Drew Weaver
Sent: Wed 10/8/2008 12:23 PM
To: 'dhcp-users at isc.org'
Subject: Re-activate current lease on DHCPDISCOVER
Is there any way to get dhcpd to reactivate a current lease when it sees a DHCPDISCOVER from a MAC address that already has a lease?

The reason being is sometimes leases don't get released and machines can end up having multiple IP addresses assigned to the same MAC simultaneously.

Is there any way to do this or something similar?

Thanks,
-Drew
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