[SOLVED] Using SSH over VPN

calzakk · 06-04-2014, 04:29 AM

Hi all,

I've got a couple of machines within a LAN (one Linux, one Solaris) that are running SSH. Within the LAN any machine can SSH to these.

I've then got a laptop that can connect via VPN to the LAN over the internet.

The problem I'm having is that the laptop cannot SSH to either of the two machines.

Is there a setting within sshd_config that by default prevents such connections from succeeding? It's not a firewall issue as port 22 on both machines is open and connections do succeed within the LAN.

Thanks in advance.

lleb · 06-04-2014, 07:37 AM

when you connect via VPN are you on the same IP scheme as the rest of the LAN or is it a specific different IP scheme?

calzakk · 06-04-2014, 08:21 AM

Quote:

Originally Posted by lleb

when you connect via VPN are you on the same IP scheme as the rest of the LAN or is it a specific different IP scheme?

Hi lleb,

Yep, that's correct. Using DHCP both in the LAN and at home, both networks using the same IP scheme (192.168.40.*).

lleb · 06-04-2014, 09:59 AM

both your home and the office LAN are on the same IP scheme? that is your problem. no can do mate. you run into IP conflicts and a myriad of other issues.

try setting your home LAN to a different IP scheme, that would be the first step to troubleshooting.

http://www.cisco.com/c/en/us/support...3-same-ip.html

this is a good link to get some info from about the IP scheme's.

calzakk · 06-04-2014, 03:03 PM

Thanks lleb, that's exactly the solution!

All working now

lleb · 06-04-2014, 09:39 PM

glad it helped. basic 101 for networking and VPNs