[vpnc-devel] VPNC works for client machines in network but not from Proxy server

[Tomas Kopal]

On 27.1.2010 15:42, Victor Javier Brizuela wrote:
> On Wed, Jan 20, 2010 at 12:34, Victor Javier Brizuela
> <brizuela.victor.javier at gmail.com> wrote:
>   
>> My problem is still there, though. I can succesfully use vpnc from
>> client machines on the network but no traffic seems to go through when
>> I start it on the proxy.
>>     
> Well, I finally tracked down my problem to a firewall issue. But the
> problem has reversed now, I can connect from the proxy server and
> succesfully exchange traffic, but no PCs on the network are able to
> transfer anything through the VPN conection established by the proxy.
> I currently have the following iptables rules set for forwarding:
>
> iptables -A FORWARD -p esp -j ACCEPT
> iptables -A FORWARD -p udp --dport isakmp -j ACCEPT
> iptables -A FORWARD -p udp --dport 10000 -j ACCEPT
> iptables -A FORWARD -o tun+ -j ACCEPT
>
> Do I need something else to make this work, maybe an SNAT rule?
>
> Thanks,
>
>   

Does the access through the VPN work on the proxy, or is even the proxy
unable to communicate? How is your routing set up on the proxy and the
clients?

Regards

Tomas