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Re: OPENVPN/IPTABLES help



Yes, IP forward is set to 1...As I mentioned, everything works as it should
if I disabled iptables...

Andrew Parker-2 wrote:
> 
> On Wed, Nov 5, 2008 at 12:59 PM, woodson2 <mlstarling31 hotmail com>
> wrote:
>>
>> Hello, I have openvpn up and running successfully on FC9. I'm using
>> routing
>> mode with the following configuration
>>
>> My internal LAN range 10.10.10.0/24
>> My Openvpn client range 10.8.0.0/24
>>
>> I can connect and ping the openvpn server from the openvpn client but
>> can't
>> talk to the other machines on the internal LAN subnet. However, the
>> machines
>> on the internal LAN subnet can ping the openvpn clients. I have entered
>> the
>> following in iptables.
>>
>>
>>
>> iptables -t nat -I POSTROUTING -s 10.10.10.0/24 -o eth0 -j MASQUERADE
>> iptables -I INPUT -i tun+ -j ACCEPT
>> iptables -I INPUT -i tap+ -j ACCEPT
>> iptables -I FORWARD -i tap+ -j ACCEPT
>> iptables -I FORWARD -i tun+ -j ACCEPT
>> iptables -I INPUT -i eth0 -j ACCEPT
>> iptables -I FORWARD -i eth0 -j ACCEPT
>>
>>
>> I have also added a route on my d-link router that routes any traffic
>> destined to 10.8.0.0/24 back to the OPENVPN server(10.10.10.xxx). This
>> all
>> works as it should when the firewall is disabled so apparently I'm
>> missing
>> some rule in iptables...Any help would be greatly appreciated..thanks..
> 
> Did you enable forwarding on the openvpn server?
> 
> echo "1" > /proc/sys/net/ipv4/ip_forward
> 
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