OpenVPN: different subnets for physical and virtual LANs?
I have set up OpenVPN server using a bridged configuration. My networking "powers" aren't that advanced, so I did this by following the openvpn tutorial for bridged servers. I have tested this with several clients connecting to my server from different locations and it works very nicely (including broadcasts).
My server's LAN IP address is 192.168.2.4, and my LAN's mask is 24. Clients connecting to my server get assigned IP address that also fall within that subnet (i.e., the 192.168.2.x pool contains both physical machines in my home and "virtual" hosts). This is what the OpenVPN walkthrough specifies:
I was wondering if it would be possible for the VPN to fall within a different subnet (such as 10.0.1.x). I would also like to do that without adding another physical NIC to my server, or changing my physical IP address. I would imagine this is possible, since that's how hamachi does it.
Can anyone point me in the right direction?
Yea you can run a routed VPN instead of a bridged VPN, however, I am not exactly clear as to why you want this behavior. If you are home inside your firewall why would you need to connect to your VPN, this would be the only time this is an issue, unless you are on another network with the same netmask as yours at home. Just a note if you are running windows clients, it is recommended to use a bridged VPn as it is more reliable in windows. But anyways basically you need to chae the networking settings from bridged to routed. start bu changing the device type from tap to tun you also won't need the bridge script anymore to configure your adapters. eh, I can't remember all the steps, let me post my config with all the comments, read trhough you should be able to figure it out, if not ask for some more help. I have only posted the relevant parts that require changing.
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