On Tue, 2005-01-25 at 14:43, Filip Sneppe wrote: > On Tue, 25 Jan 2005 10:50:26 +0100, Mario Ohnewald > <mario.ohnewald@xxxxxx> wrote: > > > > by the way. > > modprobe ip_nat_ftp ports=21,2121 > > didnt work. > > > Did you rmmod the ip_nat_ftp module before reloading it ? Yes, i did. The weird thing is that it works ONLY with the first ftp connection. If i try to upload something a 2nd time, the packges wont get forwarded anymore. I can see the following packages with tcpdump: (- 123.123.123.123 is the client - 222.222.222.222 is the FW) 15:02:45.999772 IP 123.123.123.123.42823 > 222.222.222.222.2121: SWE 1965111453:1965111453(0) win 5840 <mss 1460,sackOK,timestamp 313275888 0,nop,wscale 0> 15:02:48.990185 IP 123.123.123.123.42823 > 222.222.222.222.2121: SWE 1965111453:1965111453(0) win 5840 <mss 1460,sackOK,timestamp 313276188 0,nop,wscale 0> 15:02:54.990145 IP 123.123.123.123.42823 > 222.222.222.222.2121: SWE 1965111453:1965111453(0) win 5840 <mss 1460,sackOK,timestamp 313276788 0,nop,wscale 0> 15:03:06.990205 IP 123.123.123.123.42823 > 222.222.222.222.2121: SWE 1965111453:1965111453(0) win 5840 <mss 1460,sackOK,timestamp 313277988 0,nop,wscale 0> as you can see, its not even forwarding. /proc/sys/net/ipv4/ip_forward is turned on. Cheers, Mario