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Chapter 7 WAN
NBG4604 User’s Guide
106
The following table describes the labels in this screen.
Table 42
Network > WAN > Advanced
LABEL
DESCRIPTION
Multicast Setup
Multicast
Check this to enable multicasting. This applies to traffic routed from
the WAN to the LAN.
Leaving this blank may cause incoming traffic to be dropped or sent
to all connected network devices.
Windows Networking (NetBIOS over TCP/IP)
Allow between LAN
and WAN
Select this check box to forward NetBIOS packets from the LAN to
the WAN and from the WAN to the LAN. If your firewall is enabled
with the default policy set to block WAN to LAN traffic, you also
need to enable the default WAN to LAN firewall rule that forwards
NetBIOS traffic.
Clear this check box to block all NetBIOS packets going from the
LAN to the WAN and from the WAN to the LAN.
Allow Trigger Dial
Select this option to allow NetBIOS packets to initiate calls.
Auto-bridge
Enable Auto-bridge
mode
Select this option to have the NBG4604 switch to bridge mode
automatically when the NBG4604 gets a WAN IP address in the
range of 192.168.x.y (where x and y are from zero to nine) no
matter what the LAN IP address is.
Apply
Click
Apply
to save your changes back to the NBG4604.
Reset
Click
Reset
to begin configuring this screen afresh.
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NBG4604 User’s Guide
107
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 65
LAN Setup
The LAN screens can help you configure a LAN DHCP server and manage IP
addresses.
8.2
What You Can Do
Use the
IP
screen (
Section 8.4 on page 109
) to change your basic LAN settings.
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Chapter 8 LAN
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108
8.3
What You Need To Know
The actual physical connection determines whether the NBG4604 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.
Figure 66
LAN and WAN IP Addresses
The LAN parameters of the NBG4604 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.
8.3.1
IP Pool Setup
The NBG4604 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 NBG4604 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 2.4.6 on page 31
for information on IP Address and Subnet Mask.
8.3.2
LAN TCP/IP
The NBG4604 has built-in DHCP server capability that assigns IP addresses and
DNS servers to systems that support DHCP client capability.
Refer to the
Section 2.4.7 on page 32
section for information on System DNS
Servers.
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Chapter 8 LAN
NBG4604 User’s Guide
109
8.4
LAN IP Screen
Use this screen to change your basic LAN settings. Click
Network
>
LAN
.
Figure 67
Network > LAN > IP
The following table describes the labels in this screen.
Table 43
Network > LAN > IP
LABEL
DESCRIPTION
Get from DHCP
Server
Select this to have your NBG4604 receive its IP address automatically
from a DHCP server.
User Defined LAN
IP
Select this to manually enter the IP address and Subnet Mask as they
were provided to you by your network administrator.
IP Address
Type the IP address of your NBG4604 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 NBG4604 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 NBG4604.
Apply
Click
Apply
to save your changes back to the NBG4604.
Reset
Click
Reset
to begin configuring this screen afresh.
Page 110 / 268
Chapter 8 LAN
NBG4604 User’s Guide
110

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