Routing in Windows

Test your setup using PING:

On System #1 open a MS-DOS prompt and type the following: 
ping 192.168.1.2
ping 192.168.2.11

System #1 can communicate with System #2 (192.168.1.2) and System #3 (192.168.2.11) in this test. What IP address did the PING and REPLY pass through?

Example from System #3

System #3 can communicate with System #2, but NOT with System #1.

Why? Most probably your Gateway is not properly configured for Network #1 and/or IP Forwarding was not enabled. If you used the route command, make sure the route exists, you may have forgotten to add the -p switch.

Don't forget: IT MUST WORK IN BOTH DIRECTIONS, otherwise the system receiving the PING-test-signal does NOT know on which route to send the reply back!

Next

What IP address did the PING and REPLY pass through?
Answer: 192.168.2.10