port forwarding problem

bruj3w · 08-03-2004, 05:39 AM

im trying to get bit torrent to work through my firewall.

im using the command :

iptables -t nat -I PREROUTING -p tcp --dport 6881:6889 -j DNAT --to-destination 192.168.1.20

but i get an error...

iptables v1.2.10: can't initialize iptables table `-nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

the table does exist as my firewall script initalises it with...

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

and its also listed in lsmod

iptable_nat 15438 1 (autoclean) [ipt_MASQUERADE]

any ideas as to where im going wrong? im kinda new to iptables and such.

thanks alot.

bruj3w · 08-03-2004, 05:43 AM

i fixed it.

sorry :/

abd_bela · 08-03-2004, 07:10 AM

hi,
I want to use , on suse 9.1 , same thing on Redhat, a forwarding ; so one card has an addresse connected to a subnet another card is connected to another subnet,
I flush the iptables : iptables -F

echo "1" > /proc/sys/net/ipv4/ip_forward ,

but I could not see the second subnet from the first subnet

Is there other thing to do , to see the other subnet?
I noticed also that the card is declared with ipv6, when I ran the ifconfig
perhaps a rule to send from one card to another ?

Ebel · 08-13-2004, 08:13 PM

Quote:

Originally posted by bruj3w
i fixed it.

sorry :/

Well if you've fixed it, then post up the solution, so others can learn.