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Old 11-28-2012, 01:05 AM   #1
Tekiano
LQ Newbie
 
Registered: Nov 2012
Posts: 12

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Can't add a Port address translation rule


Hi All,

I try since two days to redirect traffic coming in a port to another address and port, the problem is that iptables returns me :
Code:
iptables: No chain/target/match by that name.
I use linux kernel 2.6.39
iptables version iptables v1.4.12

here the rules
Code:
iptables -v -t nat -D PREROUTING -p tcp --dport 80 -j DNAT --to-dest
ination 192.168.0.3:81 
DNAT  tcp opt -- in * out *  0.0.0.0/0  -> 0.0.0.0/0   tcp dpt:80 to:192.168.0.3:81
iptables: No chain/target/match by that name.
Does any one Know which option I have to activate in the kernel to resolve this ?

Thank you

Last edited by Tekiano; 11-28-2012 at 01:11 AM.
 
Old 11-28-2012, 04:00 AM   #2
eSelix
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Registered: Oct 2009
Location: Wroclaw, Poland
Distribution: Arch, Kubuntu
Posts: 1,254

Rep: Reputation: 314Reputation: 314Reputation: 314Reputation: 314
Option "-D" means to delete specific rule, you want to use option "-I PREROUTING" or "-A PREROUTING" to add new rule. Remember also to enable forwarding on this machine, by for example:
Code:
echo 1 > /proc/sys/net/ipv4/ip_forward

Last edited by eSelix; 11-28-2012 at 04:05 AM.
 
1 members found this post helpful.
Old 11-28-2012, 04:43 AM   #3
Tekiano
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Registered: Nov 2012
Posts: 12

Original Poster
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Thank you eSelix, this fixes my problem.
 
  


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