Hi Pablo. I managed to do some more testing, and maybe i found my problem. With conntrack running, i took for granted that every tcp connection would be tracked and resumed. So, as i said in my first email, i didn't set up any iptables rules (except one for snat). With this configuration conntrackd does'nt work. Then i tried some iptables rules like the ones in http://conntrack-tools.netfilter.org/testcase.html and things started working. Please, to be crystal clear on that, can you confirm that when you say in manual " ... 3) A well-formed stateful rule-set. Otherwise you are likely to experience problems during the fail-over. An example of a well-formed stateful iptables rule-set is available in the conntrack-tools website. ... " you mean : "To ensure that conntrackd work correctly you must have a set of iptables rules with state tracking enabled" ? If so that's great, i found my problem. Many thanks in advance for your help, regards Simone Zaffalon -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html