Following on from here.  Another issue I find is when you install it; it does not push through DNS from the local network (green interface).  To solve this problem it is a simple configuration change made to one file.

The easiest way to do this is use WINSCP to connect to your IPCOP machine. Locate the file server.conf from the location below

/var/ipcop/ovpn/server.conf

Edit the file adding the following line, just add it at the bottom.

push “dhcp-option DNS 192.168.0.5″

Replace ‘192.168.0.5‘ with your internal DNS server for the Green network.

Save the file and reboot IPCOP.

Now when your clients connect they can use IP or the DNS name of the computers in the green network!

To connect to another subnet (interface) of your IPCop machine from the internet you must edit the server.conf file. This will allow access to your Orange and Blue zones along with the standard green zone.

I used the great software WinSCP to connect to my firewall and edit the file server.conf.

File Location: /var/ipcop/ovpn/server.conf

Green interface IP: 192.168.0.254

Orange interface IP: 192.168.10.254

In this file you should find the following line push “route 192.168.0.0 255.255.255.0″ This is the IP and Subnet of your Green interface.

I added the line push “route 192.168.100.0 255.255.255.0″ the the file to allow connections to be made to my Orange Interface.

I then rebooted the IPCop machine and it was all tickety boo!

Depending on how your machine is configured the numbers you see above may be different. So please don’t just cut and paste. Check out your own configuration.