Hi,
On redhat 7.3 iptables 1.2.5, all needed modules appear to be loaded
correctly.
I have the box setup to nat and that works like a charm, but run into
problems when I try to port forward to the internal network. Here is
what I run, all pretty text book from what I can tell:
$IPTABLES -P INPUT ACCEPT
$IPTABLES -F INPUT
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -F OUTPUT
$IPTABLES -P FORWARD DROP
$IPTABLES -F FORWARD
$IPTABLES -t nat -F
# Portfw section
$IPTABLES -A FORWARD -i eth0 -o eth1 -p tcp --dport 23 -m state --state
NEW,ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A PREROUTING -t nat -p tcp -d my.external.ip --dport 23 -j
DNAT --to 192.168.0.6:23
#
$IPTABLES -A FORWARD -i $EXTIF -o $INTIF -m state --state
ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD -i $INTIF -o $EXTIF -j ACCEPT
$IPTABLES -A FORWARD -j LOG
$IPTABLES -t nat -A POSTROUTING -o $EXTIF -j MASQUERADE
--
No errors are ever given, and iptables -L lists the rules no problem.
However port 23 is never opened, or shown via netstat -a.
I am on kernel 2.4.18-19.7.x fwiw
Any help or suggestions would be greatly appreciated.
-mike
