[CentOS] DHCP problem with virtual interfaces

[Simone Caldana]

Il giorno 12/ago/2010, alle ore 10.51, Simone Caldana ha scritto:

> Il giorno 11/ago/2010, alle ore 20.31, Simone Caldana ha scritto:
>> 
>> I am collecting port 67 traffic on the dhcp server since this afternoon. I hope to be able to find out more.
> 
> further testing revealed that dhclient really asks for the wrong ip (but always sends the client-identifier), and this is due to the poisoned leases file. I am now using /dev/null as leases file for all the virtual dhclients, but I wonder if this disables the entire "keep the old lease" system (which I don't really need) or it simply stays only in memory, which won't really solve the problem.

bug has been filed, patch has been proposed:
https://bugzilla.redhat.com/show_bug.cgi?id=623953

Jeremiah Jinno discovered the problem and proposed a patch upstream to ISC:

https://lists.isc.org/mailman/htdig/dhcp-users/2010-June/011521.html

-- 
Simone Caldana