Reverse VPN Gateway

Business solution to host your own OpenVPN server with web management interface and bundled clients.
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LogicalUnit
OpenVpn Newbie
Posts: 8
Joined: Sat Jan 23, 2016 3:55 am

Reverse VPN Gateway

Post by LogicalUnit » Sat Jan 23, 2016 4:11 am

Hi everyone, I am trying to build a reverse VPN gateway as described in this video by Hak5: https://youtu.be/b7qr0laM8kA

The basic concept is to bridge two networks by dialing them both into the same VPN server. This allows you to remotely access a network without needing to punch holes in a firewall.

The difference is that I'm using a Raspberry Pi running Wheezy instead of a LAN Turtle.

My two clients are both connected to OpenVPN Access Server. I can ping the target client using its VPN IP or its local IP. However, I can't access the rest of its local network..

The target machine is on 192.168.1.0/24

According to Access Server, my Dynamic IP Address Network is 172.27.224.0/20

However, when I start up OpenVPN, I am missing some of the network mappings that appear in the demonstration video.

I have enabled IPv4 forwarding with:

sudo sysctl -w net.ipv4.ip_forward=1

and I have tried mapping the networks using:

sudo iptables -A FORWARD -s 192.168.1.0/24 -d 172.27.224.0/20 -j ACCEPT
sudo iptables -A FORWARD -s 172.27.224.0/20 -d 192.168.1.0/24 -j ACCEPT

but it's still not working.

Can someone help me with these mappings? (LAN -> VPN, and VPN -> LAN)

Any help would be greatly appreciated.

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