ZyXEL Communications 100 Series User Manual

 Chapter 10 Interface

ZyWALL USG 100/200 Series User’s Guide

Use PPP interfaces (PPPoE/PPTP interfaces) to connect to your ISP so you do not have to 
install or manage PPPoE or PPTP software on each computer in the network.

Figure 159   Example: PPPoE/PPTP Interfaces

PPPoE/PPTP interfaces are similar to other interfaces in some ways. They have an IP address, 
subnet mask, and gateway used to make routing decisions; they restrict bandwidth and packet 
size; and they can verify the gateway is available. There are two main differences between 
PPPoE/PPTP interfaces and other interfaces.

1 You must set up an account with your ISP and configure the PPPoE/PPTP interface with 

your account’s settings.

2 You do not set up the subnet mask or gateway.

PPPoE/PPTP interfaces are interfaces between the ZyWALL and only one computer. 
Therefore, the subnet mask is always 255.255.255.255. In addition, the ZyWALL 
always treats the ISP as a gateway.

At the time of writing, it is possible to set up the IP address of the gateway (ISP) using CLI 
commands but not in the web configurator.

Click Network > Interface > PPP to open the following screen. This screen lists the PPPoE/
PPTP interfaces configured on the ZyWALL. 

Figure 160   Network > Interface > PPP

Each field is described in the table below.

Table 59   Network > Interface > PPP

#

This field is a sequential value, and it is not associated with any interface.

Name

This field displays the name of the interface.

Base Interface

This field displays the interface on the top of which the PPPoE/PPTP interface 
is.