Could anyone send me a working example of port forwarding? I just tried to get it going to no avail.
I test setup has a firewall connecting 172.26.14.0/24 and 172.26.2.0/24 doing nothing but routing. Now i want it to redirect some ports (I tried 23,25,80) from its own 172.26.2.1 address to 172.26.14.7. I tried accomplishing that by adding ipmasqadm portfw -a -P tcp -L 172.26.2.1 80 -R 172.26.14.7 80 With this setup I get a log entry that someone tried to initiate a session on 172.26.14.7 but that session never is fully established since no data arrive on the outside. Also there is no error log on any of the machines. Then I told my firewall to masquerade the internal network. With that I got www going. However, with a respective rule added, smtp and telnet did not work either. They do get a 'connection denied' icmp package back. But my inside test machine does accept both protocols as I can see when directly addressing it. I also tried to the ip command to redirect anotehr address (in my case 172.26.2.2) completely to my internal machine. Using this setup I have the same problem. I get the log that [EMAIL PROTECTED] tries to establish a connection and nothing more. Strangely enough about every 2nd or 3rd try this log shows the correct user instead of unknown. Finally I tried marking packages to port 80 and add a special ip rule for these packages but the result was the same. I think I missed something essential but right now I have no idea what that could be. And yes CONFIG_IP_MASQUERADE_IPPORTFW is defined in the kernel. Thanks in advance for any help. Michael P.S.: PLease CC me on replies. -- Michael Meskes | Go SF 49ers! Th.-Heuss-Str. 61, D-41812 Erkelenz | Go Rhein Fire! Tel.: (+49) 2431/72651 | Use Debian GNU/Linux! Email: Michael@Fam-Meskes.De | Use PostgreSQL!
