Iptables forwarding port question !

ciso · 02-22-2012, 09:14 AM

Hello !

I want to do this with iptables,

I'm logged on the portal captive server,and the portal captive have a firewall included,and I use iptables

I want my captive portal server to join my open ldap server on the port 2389,actually he is joining my open ldap on the port 389,so the connexion failed because my LDAP is configured on the port 2389!

What iptables should I use ? PREROUTING ? POSTROUTING ?

Thanks a lot and sorry for my bad english I'm french

ciso · 02-22-2012, 09:19 AM

$IPTABLES -A PREROUTING -t nat -i $EXTIF -p tcp -d 10.252.3.2 --dport 389 -j REDIRECT --to-port 2389
$IPTABLES -A PREROUTING -t nat -i $EXTIF -p udp -d 10.252.3.2 --dport 389 -j REDIRECT --to-port 2389

But it's not working ! Mistakes or not ?