Hi, I'm using iptables-1.2.6a-2 in RedHat 8.0 router, gateway and firewall. I can not configure to implement the case: Ex: - External IP of gateway is 203.162.4.1, this host is also listening at port 80 (Apache WebServer) and portal 8080 (Tomcat). - Internal IP of gateway is 192.168.2.1 - An other internal host is 192.168.2.2, this host is listening at port 80 (IIS WebServer).
I want a user can go to http://203.162.4.1:81 to access the internal host 192.168.2.2 that IIS is running. I have tried to use "PREROUTING" such as
/sbin/iptables -A PREROUTING -t nat -d 203.162.4.1 -p tcp --dport 81 -j DNAT --to 192.168.2.2:80
(View my configuration iptable in attachment).
but url "http://203.162.4.1:81"; does not work. If I try "REROUTING" to 192.168.2.1 such as: /sbin/iptables -A PREROUTING -t nat -d 203.162.4.1 -p tcp --dport 81 -j DNAT --to 192.168.2.1:8080
It's OK. Then, http://203.162.4.1:81 is TomCat HomePage.
What is woring? Please help me!
Thanks!
Attachment:
iptable
Description: application/java-applet
