ZyXEL Communications Prestige 128Plus, User Manual, Page: 137 / 203

Prestige 128+ ISDN Router
L2TP 10-7
Table 10-1 SMT Menu 11.1- Remote Profile L2TP fields
Field Description
Tunneling mode Select mode of Layer 2 Tunneling Protocol (L2TP in menu
10). Choices are None, Direct or Proxy.
Endpoint Index This is the corresponding index number of the endpoint
tunnel in Menu 10.
Direct mode
In Direct mode, you use two Prestiges directly to implement L2TP as illustrated.
Figure 10-4 Prestiges in Direct mode
The LAC (home or branch office Prestige) can log in to the ISP with the SUA
feature enabled, and when traffic needs to reach the corporate IPX (NetWare)
server, a tunnel will be created to the LNS. The LNS needs to have a static IP
address from the Internet. This is because when the LAC tries to setup a tunnel to
the corporate network, it needs to know the LNS’s IP address. In the above
example, the LAC must enter the IP address of the LNS. However, for the LNS,