RHEL, failed to add iptables rule to allow DHCP requests from ‘virbr0’

I’ve just updated my RHEL 5.3 box with the last months’ updates moving it to the 5.4 release.

Just after the yum update finished I’ve begun to receive a LOT of messages containing:

OBJECT: python /usr/share/rhn/virtualization/poller.py
BODY: libvir: QEMU error : failed to add iptables rule to allow DHCP requests from 'virbr0' : Invalid argument

The solution to that, after a yum whatprovides "*/poller.py" was to remove any instance of the rhn-virtualization-host package from my machines (since I do not have any virtualization need).

Cheers,
Nicola

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