HELP - routine update broke dhcp server - SOLVED

[Moriah]

I updated the machine that runs my dhcp server, and now dhcp is broken. The old version was 4.2.4-P2 installed on Oct 16 14:18; the new version is actually the same: net-misc/dhcp-4.2.4_p2, so it must be a library or something that has changed. I also updated the kernel from 2.6.37-gentoo-r4 to 3.5.7-gentoo, so maybe that has something to do with it. I re-emerged net-misc/dhcp just to be sure, but it still does not work.

When a machine tries to get a dhcp address, the server's log shows:

[gerdesj]

At a first guess you have another change to deal with. A machine that had an address from your DHCP server in the network 192.168.3/24 is now requesting one
on 192.168.1/24 which your DHCP server is not equipped to deal with.

We'll need far more details to fix this for you:

IP address of DHCP server
All IPs of DHCP server
What subnets are available on your network (real or VLANd in some way)
Is DHCP relay in use

That should be enough to start with.

Cheers
Jon

PS It is unlikely that a kernel update or any other update broke this - but not impossible, something else changing is far more likely

[Moriah]

Its not nearly as difficult as you expected. The machine requesting the dhcp address was on a different network segment previously, as it is a portable device -- an iPad, no less. It was on a different wireless access point previously, and so the 192.168.3.x address was what it was assigned there. The dhcp server that is having a problem is on a 192.168.1.x network. Simple, see?
_________________
The MyWord KJV Bible tool is at http://www.elilabs.com/~myword

Foghorn Leghorn is a Warner Bros. cartoon character.