DHCP dies after sending NAK

Glenn Satchell Glenn.Satchell at uniq.com.au
Tue Aug 25 01:11:56 UTC 2009

>Date: Mon, 24 Aug 2009 15:04:08 -0400
>Subject: DHCP dies after sending NAK
>From: Norman Elton <normelton at gmail.com>
>To: dhcp-users at lists.isc.org
>X-BeenThere: dhcp-users at lists.isc.org
>I have a reproducible bug, where the ISC DHCP server (v. 4.1.0p1)
>stops processing packets. I've been able to reproduce the problem
>under the following circumstances...
>The server is authoritative for a subnet, and accepts requests sent
>from a DHCP relay. Clients broadcast requests, the relay forwards them
>along, everyone is happy. At some point, a client decides to unicast a
>renewal request. That is, a DHCPREQUEST comes directly to the server
>without the "giaddr" attribute set.
>Here's the output I'm getting...
>DHCPREQUEST for ( from 00:11:22:33:44:04
>via nge0: wrong network.
>DHCPNAK on to 00:11:22:33:44:04 via nge0
>That's the last line my logs show. Further packets seem to be ignored
>until I manually restart the server.
>I found a similar problem in an older post
>but am not sure if the problem was resolved. My server is also running
>on a Solaris box, is this something that is specific to their network
>implementation? I might try moving to another OS.
>Any other ideas?

Hi Norman

It's an issue with the Solaris implementation. Upgrade to dhcp 4.1.1b1
- even though it's tagged as beta it is rock solid and fixes this bug.


More information about the dhcp-users mailing list