Restrict Client from accessing other clients

blaztoff

I have open VPN installed on a server in my DMZ. I want to be able to access this client from other clients but I do not want this client to be able to access any of my other clients. Currently I can access any other open vpn client that is active. How can I restrict this client?

maikcat

hi there,

yes it is possible...

better thank janjust for this...

* do NOT use 'client-to-client'
* use iptables to filter out unwanted traffic
* to allow all traffic between clients
- make sure ip_forwarding is enabled
- add an iptables rules similar to
Code:
iptables -I FORWARD -i tun+ -j ACCEPT
iptables -I FORWARD -o tun+ -j ACCEPT

To allow only a single client IP, use something like
Code:
iptables -I FORWARD -i tun+ -s 10.8.0.26/32 -j ACCEPT
iptables -I FORWARD -o tun+ -j ACCEPT

Michael.