Lan Setup - ZyXEL Communications LTE Series User Manual

DHCP
DHCP (Dynamic Host Configuration Protocol) allows clients to obtain TCP/IP configuration at start-up
from a server. This Zyxel Device has a built-in DHCP server capability that assigns IP addresses and DNS
servers to systems that support DHCP client capability.
DNS
DNS (Domain Name System) maps 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 computer
before you can access it. The DNS server addresses you enter when you set up DHCP are passed to the
client machines along with the assigned IP address and subnet mask.
8.1.2.2 About UPnP
How do I know if I'm using UPnP?
UPnP hardware is identified as an icon in the Network Connections folder (Windows 7). 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.
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 Zyxel 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 8.6 on page 140

8.2 LAN Setup

A LAN IP address is the IP address of a networking device in the LAN. You can use the Zyxel Device's LAN
IP address to access its Web Configurator from the LAN. The DHCP server settings define the rules on
assigning IP addresses to LAN clients on your network.
Use this screen to set the Local Area Network IP address and subnet mask of your Zyxel Device.
Configure DHCP settings to have the Zyxel Device or a DHCP server assign IP addresses to devices. Click
Network Setting > Home Networking to open the LAN Setup screen.
Chapter 8 Home Networking
for examples on installing and using UPnP.
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