Hogy azt mondja:
What is the difference between bridging and routing?
Bridging and routing are two methods of linking systems via a VPN.
Bridging advantages
Broadcasts traverse the VPN -- this allows software that depends on LAN broadcasts such as Windows NetBIOS file sharing and network neighborhood browsing to work.
No route statements to configure.
Works with any protocol that can function over ethernet, including IPv4, IPv6, Netware IPX, AppleTalk, etc.
Relatively easy-to-configure solution for road warriors.
Bridging disadvantages
Less efficient than routing, and does not scale well.
Routing advantages
Efficiency and scalability.
Allows better tuning of MTU for efficiency.
Routing disadvantages
Clients must use a WINS server (such as samba) to allow cross-VPN network browsing to work.
Routes must be set up linking each subnet.
Software that depends on broadcasts will not "see" machines on the other side of the VPN.
Works only with IPv4 in general, and IPv6 in cases where tun drivers on both ends of the connection support it explicitly