ssh from hyper-v host to linux guest not working. Works perfectly from other machines. How to fix?
I have a linux guest with ssh enabled on a hyper-v host. Depending on the assigned vSwitch (Default or External), I can ssh into linux from hyper-v host but not from other systems, or I cannot ssh into linux from hyper-v host but I can from other systems. In both cases, linux can access the internet. host's IP address is 192.168.1.204. Other test machine's IP address is 192.168.1.7. Case 1: Linux on Default vSwitch, assigned address 172.23.174.5 ping from host to linux - works ssh from host to linux - works (as the network 172.23.160/20 is directly connected to host by the Hyper-V setup) ping from test to linux - will not work, since it is on another subnet ssh from test to linux - will not work, since it is on another subnet ping from linux to 8.8.8.8 - works Case 2: Linux on External vSwitch, assigned address 192.168.1.214 ping from host to linux - works!! ssh from host to linux - "Connection refused" <<<--- this is the culprit ping from test to linux - works ssh from test to linux - works ping from linux to 8.8.8.8 - works Obviously, I could go with Case 1 (NAT) and use port forwarding (netsh interface portproxy..) on the host. But I'd rather like to understand why Case 2 does not work. Especially why ping from host to linux works, but ssh does not. Any idea why this does not work and how to fix this? Dan
