Virtual Private Networks (VPNs)
Example:
LAN IP 192.168.1.0/24
PC # A | Router A |
.100 | .1 |
Tunnel
LAN IP 192.168.2.0/24
Router B | PC # B |
.1 | .100 |
When PC #A sends a Windows networking broadcast it sends it with a destination IP 192.168.1.255.
When Router A receives this broadcast it translates the destination of this broadcast to match the remote IP of the NetBIOS