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Page 131 / 150 Scroll up to view Page 126 - 130
Chapter 7 Wireless
VMG4381-B10A User’s Guide
131
access point is the WPS registrar, the enrollee, or was not involved in the WPS handshake; a
rogue device must still associate with the access point to gain access to the network. Check the
MAC addresses of your wireless clients (usually printed on a label on the bottom of the device). If
there is an unknown MAC address you can remove it or reset the AP.
Page 132 / 150
Chapter 7 Wireless
VMG4381-B10A User’s Guide
132
Page 133 / 150
VMG4381-B10A User’s Guide
133
C
HAPTER
8
Home Networking
8.1
Overview
A Local Area Network (LAN) is a shared communication system to which many networking devices
are connected. It is usually located in one immediate area such as a building or floor of a building.
Use the LAN screens to help you configure a LAN DHCP server and manage IP addresses.
8.1.1
What You Can Do in this Chapter
•
Use the
LAN Setup
screen to set the LAN IP address, subnet mask, and DHCP settings of your
Device (
Section 8.2 on page 135
).
•
Use the
Static DHCP
screen to assign IP addresses on the LAN to specific individual computers
based on their MAC Addresses (
Section 8.3 on page 138
).
•
Use the
UPnP
screen to enable UPnP and UPnP NAT traversal on the Device (
Section 8.4 on page
140
).
•
Use the
Additional Subnet
screen to configure IP alias and public static IP (
Section 8.5 on page
141
).
•
Use the
STB Vendor ID
screen to have the Device automatically create static DHCP entries for
Set Top Box (STB) devices when they request IP addresses (
Section 8.8 on page 150
)
•
Use the
5th Ethernet Port
screen to configure the Ethernet WAN port as a LAN port (
Section 8.9
on page 150
).
•
Use the
MoCA
screen to set the MoCA Privacy, and enable multimedia and home networking over
coaxial cable (
Section 8.10 on page 151
).
•
Use the
LAN VLAN
screen to control the VLAN ID and IEEE 802.1p priority tags of traffic sent out
through individual LAN ports (
Section 8.11 on page 152
).
•
Use the
TFTP Server
Name
screen to access the TFTP server using DHCP option 66 (
Section
8.12 on page 152
).
DSL
LAN
Page 134 / 150
Chapter 8 Home Networking
VMG4381-B10A User’s Guide
134
8.1.2
What You Need To Know
8.1.2.1
About LAN
IP Address
IP addresses identify individual devices on a network. Every networking device (including
computers, servers, routers, printers, etc.) needs an IP address to communicate across the
network. These networking devices are also known as hosts.
Subnet Mask
Subnet masks determine the maximum number of possible hosts on a network. You can also use
subnet masks to divide one network into multiple sub-networks.
DHCP
A DHCP (Dynamic Host Configuration Protocol) server can assign your Device an IP address, subnet
mask, DNS and other routing information when it's turned on.
DNS
DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and
vice versa. The DNS server is extremely important because without it, you must know the IP
address of a networking device before you can access it.
RADVD (Router Advertisement Daemon)
When an IPv6 host sends a Router Solicitation (RS) request to discover the available routers,
RADVD with Router Advertisement (RA) messages in response to the request. It specifies the
minimum and maximum intervals of RA broadcasts. RA messages containing the address prefix.
IPv6 hosts can be generated with the IPv6 prefix an IPv6 address.
8.1.2.2
About UPnP
Identifying UPnP Devices
UPnP hardware is identified as an icon in the Network Connections folder (Windows XP). Each UPnP
compatible device installed on your network will appear as a separate icon. Selecting the icon of a
UPnP device will allow you to access the information and properties of that device.
NAT Traversal
UPnP NAT traversal automates the process of allowing an application to operate through NAT. UPnP
network devices can automatically configure network addressing, announce their presence in the
network to other UPnP devices and enable exchange of simple product and service descriptions.
NAT traversal allows the following:
•
Dynamic port mapping
•
Learning public IP addresses
Page 135 / 150
Chapter 8 Home Networking
VMG4381-B10A User’s Guide
135
•
Assigning lease times to mappings
Windows Messenger is an example of an application that supports NAT traversal and UPnP.
See the
Chapter 11 on page 181
for more information on NAT.
Cautions with UPnP
The automated nature of NAT traversal applications in establishing their own services and opening
firewall ports may present network security issues. Network information and configuration may also
be obtained and modified by users in some network environments.
When a UPnP device joins a network, it announces its presence with a multicast message. For
security reasons, the Device allows multicast messages on the LAN only.
All UPnP-enabled devices may communicate freely with each other without additional configuration.
Disable UPnP if this is not your intention.
UPnP and ZyXEL
ZyXEL has achieved UPnP certification from the Universal Plug and Play Forum UPnP™
Implementers Corp. (UIC). ZyXEL's UPnP implementation supports Internet Gateway Device (IGD)
1.0.
See
Section 8.5 on page 141
for examples of installing and using UPnP.
Finding Out More
See
Section 8.13 on page 153
for technical background information on LANs.
8.1.3
Before You Begin
Find out the MAC addresses of your network devices if you intend to add them to the DHCP Client
List screen.
8.2
The LAN Setup Screen
Use this screen to set the Local Area Network IP address and subnet mask of your Device. Click
Network Setting > Home Networking
to open the
LAN Setup
screen.
Follow these steps to configure your LAN settings.
1
Enter an IP address into the
IP Address
field. The IP address must be in dotted decimal notation.
This will become the IP address of your Device.
2
Enter the IP subnet mask into the
IP Subnet Mask
field. Unless instructed otherwise it is best to
leave this alone, the configurator will automatically compute a subnet mask based upon the IP
address you entered.
3
Click
Apply
to save your settings.

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