Chapter 10 Interfaces
ZyWALL/USG Series User’s Guide
290
PPPoE/PPTP/L2TP 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/L2TP interfaces and other interfaces.
• You must also configure an ISP account object for the PPPoE/PPTP/L2TP interface to use.
Each ISP account specifies the protocol (PPPoE or PPTP or L2TP), as well as your ISP account
information. If you change ISPs later, you only have to create a new ISP account, not a new
PPPoE/PPTP/L2TP interface. You should not have to change any network policies.
• You do not set up the subnet mask or gateway.
PPPoE/PPTP/L2TP interfaces are interfaces between the ZyWALL/USG and only one computer.
Therefore, the subnet mask is always 255.255.255.255. In addition, the ZyWALL/USG always
treats the ISP as a gateway.
10.4.1 PPP Interface Summary
This screen lists every PPPoE/PPTP/L2TP interface. To access this screen, click Configuration >
Network > Interface > PPP.
Figure 223 Configuration > Network > Interface > PPP
Each field is described in the table below.
Table 105 Configuration > Network > Interface > PPP
LABEL DESCRIPTION
User Configuration /
System Default
The ZyWALL/USG comes with the (non-removable) System Default PPP interfaces
pre-configured. You can create (and delete) User Configuration PPP interfaces.
System Default PPP interfaces vary by model.
Add Click this to create a new user-configured PPP interface.
Edit Double-click an entry or select it and click Edit to open a screen where you can modify
the entry’s settings.
Remove To remove a user-configured PPP interface, select it and click Remove. The ZyWALL/
USG confirms you want to remove it before doing so.
Activate To turn on an entry, select it and click Activate.
Inactivate To turn off an entry, select it and click Inactivate.
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