hi List ! i have a great problem with port forwarding ! my network : <db-host>---<firewall>-------<client> LAN WAN on the db-host is running : WIN NT 4 Server with an oracle database configured as MTS server the listener is listening on port 5000 on the firewall : suse 7.1 with ipchains openssh 2.9.9p2 client : win 98 or win nt problem : i connect with teraterm from the <client> to the firewall and forward the localport 5000 to the <dbhost>:5000 all works good with the database but when you do nothing for 2 minutes, the connection to the database failes and i get an oracle error , why? i can see on the log file of the firewall that the packet is comming back from the <db-host>. has anybody an idea ? is there any problem with openssh ? thanx a lot!