Hi all, I am studying OpenVpn and want first to set up a simple architecture. I have 2 machines linux on the same network : - client : 192.168.50.150 - server : 192.168.50.75 I am accessing to server from the client machine using ssh. I want first to establish a connection without certficate. I took so mini how to example : http://openvpn.net/index.php/open-source/documentation/miscellaneous/78-static-key-mini-howto.html Notice also that both machines must be reachable from others machines. On server, I made : [code] dev tun ifconfig 192.168.50.75 192.168.50.150 secret static.key [/code] On client: [code] remote 192.168.50.75 dev tun ifconfig 192.168.50.150 192.168.50.75 secret static.key [/code] I can launch it on server, but do not have access anymore with ssh... ;) On client, it does not work because of ifconfig. I think that I am totally wrong : - I guess I could only ssh server with my vpn connection, right ? - shall I use different interface for my VPN, or different IP address ? - I do not get how "ifconfig 192.168.50.150 192.168.50.75" works. Could you give me ressources on it ? Sorry for those (stupid...) questions and thanks for your help. Eloi

Simple Client Server tunnel on a local network

eloi

Hi all,

I am studying OpenVpn and want first to set up a simple architecture.

I have 2 machines linux on the same network :
- client : 192.168.50.150
- server : 192.168.50.75

I am accessing to server from the client machine using ssh. I want first to establish a connection without certficate. I took so mini how to example : http://openvpn.net/index.php/open-source/documentation/miscellaneous/78-static-key-mini-howto.html
Notice also that both machines must be reachable from others machines.

On server, I made :

dev tun
ifconfig 192.168.50.75 192.168.50.150
secret static.key

On client:

remote 192.168.50.75
dev tun
ifconfig 192.168.50.150 192.168.50.75
secret static.key

I can launch it on server, but do not have access anymore with ssh... 😉
On client, it does not work because of ifconfig.

I think that I am totally wrong :
- I guess I could only ssh server with my vpn connection, right ?
- shall I use different interface for my VPN, or different IP address ?
- I do not get how "ifconfig 192.168.50.150 192.168.50.75" works. Could you give me ressources on it ?

Sorry for those (stupid...) questions and thanks for your help.

Eloi

Mimiko

Please re-read the manual carefully.

You can't use as ifconfig's parameters the same ip/mask as the local network. It must differ. For example:
for server it will be 10.0.0.1
for client it wil be 10.0.0.2

You started good, but did not choose the ip's correctly.