port forwarding, emule ??

L1nuxbug · 09-21-2006, 01:08 AM

Dear Friends...

I have windows xp clients on LAN with Linux AS3 working as Gateway and DHCP server, in one client i have installed e-mule, its unable to connect to server,
H E L P !

odcheck · 09-21-2006, 01:14 AM

You can use IPTABLES commands to open the firewall or you can use
system-config-security to adjust that.
As long as you have no NAT Router that opens the Internet Connection cause if so you have to adjust that there.

L1nuxbug · 09-21-2006, 01:22 AM

from IPTABLES how to configure it??

odcheck · 09-21-2006, 02:12 AM

For e.g. the pc that runs emule has the ip:192.168.0.1
so it would be:

Code:

iptables -t nat -A PREROUTING -p tcp --dport 5881 -i ppp0 -j DNAT --to 192.168.0.1
iptables -t nat -A PREROUTING -p udp --dport 5906 -i ppp0 -j DNAT --to 192.168.0.1
iptables -t nat -A PREROUTING -p tcp --dport 24500:24505 -i ppp0 -j DNAT --to 192.168.0.1
iptables -A FORWARD -p tcp -d 192.168.0.1 --dport 5881 -o eth1 -j ACCEPT
iptables -A FORWARD -p udp -d 192.168.0.1 --dport 5906 -o eth1 -j ACCEPT

This is what you have to adjust if you using a dial up with your RHEL3 AS.
Then I would be a good idea to attach this at the end of course of your
/etc/ppp/ip-up config.