[Serusers] sems & nat

hi {ser+sems}users, i've installed sems and ser with nathelper and rtpproxy all from cvs, ser and rtpproxy work fine, i can talk to people inside and outside nat, but I can hear sems ivr only if i call from inside the nat where ser+sems is runnig. Has anyone some experience with nat and sems? May I run ser+sems from inside a nat with port forwarding (as I am doing now) or will this preclude sems from working in any case? I thought I should have to pass thru rtpproxy, but I don't know how to deal with ser+sems fifos and rtpproxy. reading from the following debug line it seems that no address translation occurs in the communication between caller (192.168.1.111) and sems (192.168.1.125, the two private IPs belonging to different networks) (997) DEBUG: run (AmIcmpWatcher.cpp:133): ICMP from 192.168.1.125: type='Destination Unreachable' src=192.168.1.125:36032 dst=192.168.1.111:8000 Thanks -- Giovanni Balasso giaso(a)yahoo.it