Re: [luv-main] Routing change handling in recent kernels.

That was it - thank you :) ...deon hannah commodore <hannah@tinfoilhat.net> wrote on 15/09/2011 13:45:45:

centos 5 obviously has the sysctl rp_filter disabled, and the others have enabled it.

rp_filter will check incoming source address against its own interface addresses, to try and prevent address spoofing.

disable it in /etc/sysctl.conf and you should be good