[plug] IPtables

[Gerald Abrigo]

Hello everyone

 

I know anybody can answer my probs regarding scripts on IPtables.

Im running RH9 kernel 2.4.20-8.IPTABLES is enable, Network service is running but when I issue sh command or run this script manually, the system display an error message =

 

no such file or directory /proc/sys/net/upv4/ip_forward

iptables: Bad Policy Name

and so on.......

 

heres the script:

 

#!/bin/sh

IPTABLES=/sbin/iptables

#Enable forwarding
echo "1" > /proc/sys/net/ipv4/ip_forward

$IPTABLES -P INPUT ACCEPT
$IPTABLES -F INPUT

#The following three lines are not necessary for NAT, but provide some security
#by blocking any connections from being initiated from outside the network.
$IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A INPUT -m state --state NEW -i ! eth0 -j ACCEPT
$IPTABLES -A INPUT -j DROP

$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -F OUTPUT

$IPTABLES -P FORWARD DROP
$IPTABLES -F FORWARD
$IPTABLES -t nat -F
$IPTABLES -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT
$IPTABLES -A FORWARD -i eth1 -o eth0 -j ACCEPT
$IPTABLES -A FORWARD -j LOG

$IPTABLES -t nat -A POSTROUTING -o eth0 -j MASQUERADE

 

I also try this script at home using RH 7.3 but it runs smoothly

Is this error have something to do with my kernel?

 

Thanks to all

 

 

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