| How To Redirect Traffic To A New IP Using IPtables |
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| How To - Iptables | |||
| Written by Christian Foronda | |||
| Thursday, 03 March 2011 16:57 | |||
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Enable IP forwarding: # echo 1 > /proc/sys/net/ipv4/ip_forward Or # sysctl net.ipv4.ip_forward=1
Forward all traffic on port 80 to IP xxx.xxx.xxx.xxx on port 80: # iptables -t nat -A PREROUTING -p tcp --dport 80 -j DNAT --to-destination xxx.xxx.xxx.xxx:80 Or Forward specific host going on port 80 to IP xxx.xxx.xxx.xxx on port 80: # iptables -t nat -A PREROUTING -s sou.rce.ip.add -p tcp --dport 80 -j DNAT --to-destination xxx.xxx.xxx.xxx:80 Or Forward specific network going on port 80 to IP xxx.xxx.xxx.xxx on port 80: # iptables -t nat -A PREROUTING -s sou.rce.ip.net/24 -p tcp --dport 80 -j DNAT --to-destination xxx.xxx.xxx.xxx:80
Tell IPtables to masquerade: # iptables -t nat -A POSTROUTING -j MASQUERADE Similar articles
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