[olug] Port Forwarding

[LP]

I'm still wrestling with this.
I'm seeing this error:

/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: init_module: 
Device or resource busy
Hint: insmod errors can be caused by incorrect module parameters, including 
invalid IO or IRQ parameters
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o failed
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
ip_tables failed
iptables v1.2.1a: can't initialize iptables table `filter': iptables who? 
(do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: init_module: 
Device or resource busy
Hint: insmod errors can be caused by incorrect module parameters, including 
invalid IO or IRQ parameters
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
/lib/modules/
2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o failed
/lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
ip_tables failed
iptables v1.2.1a: can't initialize iptables table `nat': iptables who? (do 
you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

Here is the entry in my rc.local that is causing the error:

echo 1 > /proc/sys/net/ipv4/ip_forward
/sbin/iptables -A INPUT -p tcp -d 24.xxx.xx.x --dport 80 -j ACCEPT
/sbin/iptables -t nat -A PREROUTING -p tcp \
         -d 24.xxx.xx.x --dport 80 \
         -j DNAT --to-destination 192.168.1.2I

I've been playing with this for several hours and could use more input please.



At 05:41 PM 6/30/2001 -0500, Jon wrote:

>quick and dirty nat forwarding with 2.4 and iptables
>/usr/sbin/iptables -t nat -A POSTROUTING -o $INET_IFACE -j MASQUERADE
>/usr/sbin/iptables -t nat -A PREROUTING -p tcp -d $STATIC_IP \
>     --dport 1080 -j DNAT --to 192.168.1.2:80
>
>On Sat, Jun 30, 2001 at 03:09:51PM -0500, LP wrote:
> > Im using the RH  2.4.2-2 kernal and I'm searching the web for information
> > on port forwarding.
> >
> > Any good site you would suggest?
> >
> > Gregg
> >
> >
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