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Old 7th March 2012, 20:51
WouterDS WouterDS is offline
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Default OpenVPN iptables + redirects to other host

Hello,

I have finally managed to install OpenVPN on my server and works good.
But the only problem is that when I run the iptables for OpenVPN it breaks my other rules that are forwarding incoming traffic on port 443 and port 444 to another host.

Anyone who can help me combining them so they'll work together?

These are my iptable rules for the OpenVPN
Code:
iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -s 10.8.0.0/24 -j ACCEPT   
iptables -A FORWARD -j REJECT
iptables -t nat -A POSTROUTING -o venet0 -j SNAT --to-source 199.180.129.110

echo 1 > /proc/sys/net/ipv4/ip_forward
And these are my iptable rules to forward the traffic to my other server
Code:
iptables -t nat -A POSTROUTING -d 173.0.57.230 \
-p tcp --dport 443 -j SNAT --to 199.180.129.110

iptables -t nat -A PREROUTING -d 199.180.129.110 \
-p tcp --dport 443 -j DNAT --to 173.0.57.230


iptables -t nat -A POSTROUTING -d 173.0.57.230 \
-p tcp --dport 444 -j SNAT --to 199.180.129.110

iptables -t nat -A PREROUTING -d 199.180.129.110 \
-p tcp --dport 444 -j DNAT --to 173.0.57.230


echo 1 > /proc/sys/net/ipv4/ip_forward
Thanks in advance,
WouterDS
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