Motorola Router 6161252-00-01 ユーザーズマニュアル

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 Proxy-enabled VPN profiles and it for wards the broadcast through the VPN tunnel.

LAN IP 192.168.1.0/24

Tunnel

PC # A --------- Router A

.100

.1

LAN IP 192.168.2.0/24

Router B --------- PC # B

.1

.100