Dear all, I am embarrassed that I have confused normal conntrack entries with expectations in my previous post. Sorry for that. Currently it seems that *no* expectations are created when my PBX sends its registrations, so my problem doesn't have anything to do with wrong expectation lifetime. But the initial question remains: Why do the SIP registrations of the PBX not trigger a conntrack entry with a lifetime of 900 s given that I have loaded nf_conntrack_sip with the parameter sip_timeout=900? Regards, and thanks again, Binarus
