Table 38 wan: pptp encapsulation – ZyXEL Communications ZyXEL ZyWALL 5 User Manual
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ZyWALL 5 User’s Guide
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Chapter 7 WAN Screens
The following table describes the labels in this screen.
Table 38 WAN: PPTP Encapsulation
LABEL
DESCRIPTION
ISP Parameters for
Internet Access
Encapsulation
Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables
secure transfer of data from a remote client to a private server, creating a Virtual
Private Network (VPN) using TCP/IP-based networks. PPTP supports on-
demand, multi-protocol, and virtual private networking over public networks, such
as the Internet. The ZyWALL supports only one PPTP server connection at any
given time. To configure a PPTP client, you must configure the User Name and
Password fields for a PPP connection and the PPTP parameters for a PPTP
connection.
User Name
Type the user name given to you by your ISP.
Password
Type the password associated with the user name above.
Retype to Confirm
Type your password again to make sure that you have entered is correctly.
Nailed-up
Select Nailed-Up if you do not want the connection to time out.
Idle Timeout
This value specifies the time in seconds that elapses before the ZyWALL
automatically disconnects from the PPTP server.
PPTP
Configuration
My IP Address
Type the (static) IP address assigned to you by your ISP.
My IP Subnet Mask Your ZyWALL will automatically calculate the subnet mask based on the IP
address that you assign. Unless you are implementing subnetting, use the subnet
mask computed by the ZyWALL.
Server IP Address
Type the IP address of the PPTP server.
Connection ID/
Name
Type your identification name for the PPTP server.
WAN IP Address
Assignment
Get automatically
from ISP
Select this option If your ISP did not assign you a fixed IP address. This is the
default selection.
Use Fixed IP
Address
Select this option If the ISP assigned a fixed IP address.
My WAN IP
Address
Enter your WAN IP address in this field if you selected Use Fixed IP Address.
Remote IP Subnet
Mask
Enter the gateway IP subnet mask (if your ISP gave you one) in this field if you
selected Use Fixed IP Address.
Remote IP Address Enter the gateway IP address (if your ISP gave you one) in this field if you
selected Use Fixed IP Address.
Advanced Setup
Enable NAT
(Network Address
Translation)
Network Address Translation (NAT) allows the translation of an Internet protocol
address used within one network (for example a private IP address used in a local
network) to a different IP address known within another network (for example a
public IP address used on the Internet).
Select this checkbox to enable NAT.
For more information about NAT see
.