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Page 91 / 224 Scroll up to view Page 86 - 90
Chapter 7 WAN
NBG-418N User’s Guide
91
This screen displays when you select
PPTP
encapsulation.
Figure 65
Network > WAN > Internet Connection: PPTP Encapsulation
The following table describes the labels in this screen.
Table 40
Network > WAN > Internet Connection: PPTP Encapsulation
LABEL
DESCRIPTION
ISP Parameters for Internet Access
Connection Type
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 NBG-418N 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 correctly.
MTU Size
Enter the MTU or the largest packet size per frame that your NBG-418N can receive
and process.
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Chapter 7 WAN
NBG-418N User’s Guide
92
Nailed-up Connection
Select
Nailed-Up Connection
if you do not want the connection to time out.
Idle Timeout
This value specifies the time in minutes that elapses before the NBG-418N
automatically disconnects from the PPTP server.
PPTP Configuration
Server IP Address
Type the IP address of the PPTP server.
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
.
My IP Subnet
Mask
Your NBG-418N 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 NBG-418N.
My IP Gateway
Enter a Gateway IP Address (if your ISP gave you one) in this field.
DNS Servers
First DNS Server
Second DNS Server
If you do not configure a DNS server, you must know the IP address of a computer in
order to access it.
Select
From ISP
if your ISP dynamically assigns DNS server information (and the
NBG-418N’s WAN IP address). The field to the right displays the (read-only) DNS
server IP address that the ISP assigns.
Select
User-Defined
if you have the IP address of a DNS server. Enter the primary
and secondary DNS server's IP address in the fields to the right.
WAN MAC Address
The MAC address section allows users to configure the WAN port's MAC address by
either using the NBG-418N’s MAC address, copying the MAC address from a computer
on your LAN or manually entering a MAC address.
Factory default
Select
Factory default
to use the factory assigned default MAC Address.
Clone the computer's
MAC address - MAC
Address
Select this option to clone the MAC address of the computer (displaying in the screen)
from which you are configuring the NBG-418N. Once it is successfully configured, the
address will be copied to the rom file. It will not change unless you change the setting
or upload a different ROM file.
Set WAN MAC Address
Select this option and enter the MAC address you want to use.
Apply
Click
Apply
to save your changes back to the NBG-418N.
Reset
Click
Reset
to begin configuring this screen afresh.
Table 40
Network > WAN > Internet Connection: PPTP Encapsulation (continued)
LABEL
DESCRIPTION
Page 93 / 224
NBG-418N User’s Guide
93
C
HAPTER
8
LAN
8.1
Overview
This chapter describes how to configure LAN settings.
A Local Area Network (LAN) is a shared communication system to which many computers are
attached. A LAN is a computer network limited to the immediate area, usually the same building or
floor of a building. The LAN screens can help you configure a LAN DHCP server, manage IP
addresses, and partition your physical network into logical networks.
Figure 66
LAN Setup
The LAN screens can help you configure a LAN DHCP server and manage IP addresses.
8.2
What You Need To Know
The actual physical connection determines whether the NBG-418N ports are LAN or WAN ports.
There are two separate IP networks, one inside the LAN network and the other outside the WAN
network as shown next.
Page 94 / 224
Chapter 8 LAN
NBG-418N User’s Guide
94
Figure 67
LAN and WAN IP Addresses
The LAN parameters of the NBG-418N are preset in the factory with the following values:
•
IP address of 192.168.1.1 with subnet mask of 255.255.255.0 (24 bits)
•
DHCP server enabled with 32 client IP addresses starting from 192.168.1.33.
These parameters should work for the majority of installations. If your ISP gives you explicit DNS
server address(es), read the embedded Web Configurator help regarding what fields need to be
configured.
8.2.1
IP Pool Setup
The NBG-418N is pre-configured with a pool of 32 IP addresses starting from 192.168.1.33 to
192.168.1.64. This configuration leaves 31 IP addresses (excluding the NBG-418N itself) in the
lower range (192.168.1.2 to 192.168.1.32) for other server computers, for instance, servers for
mail, FTP, TFTP, web, etc., that you may have.
Refer to
Section 3.4.6 on page 30
for information on IP Address and Subnet Mask.
8.2.2
LAN TCP/IP
The NBG-418N has built-in DHCP server capability that assigns IP addresses and DNS servers to
systems that support DHCP client capability.
Refer to the
Section 3.4.7 on page 30
section for information on System DNS Servers.
8.3
LAN IP Screen
Use this screen to change your basic LAN settings. Click
Network
>
LAN
.
Page 95 / 224
Chapter 8 LAN
NBG-418N User’s Guide
95
Figure 68
Network > LAN > IP
The following table describes the labels in this screen.
Table 41
Network > LAN > IP
LABEL
DESCRIPTION
IP Address
Type the IP address of your NBG-418N in dotted decimal notation 192.168.1.1 (factory
default).
IP Subnet Mask
The subnet mask specifies the network number portion of an IP address. Your NBG-
418N 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
NBG-418N.
Apply
Click
Apply
to save your changes back to the NBG-418N.
Reset
Click
Reset
to begin configuring this screen afresh.

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