Technical Reference - ZyXEL Communications AMG1312-T10D User Manual

7.9 Technical Reference

This section provides some technical background information about the topics covered in this
chapter.
LANs, WANs and the Device
The actual physical connection determines whether the Device 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 54 LAN and WAN IP Addresses
LAN
DHCP Setup
DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to
obtain TCP/IP configuration at start-up from a server. You can configure the Device as a DHCP
server or disable it. When configured as a server, the Device provides the TCP/IP configuration for
the clients. If you turn DHCP service off, you must have another DHCP server on your LAN, or else
the computer must be manually configured.
IP Pool Setup
The Device is pre-configured with a pool of IP addresses for the DHCP clients (DHCP Pool). See the
product specifications in the appendices. Do not assign static IP addresses from the DHCP pool to
your LAN computers.
LAN TCP/IP
The Device has built-in DHCP server capability that assigns IP addresses and DNS servers to
systems that support DHCP client capability.
IP Address and Subnet Mask
Similar to the way houses on a street share a common street name, so too do computers on a LAN
share one common network number.
AMG1312-T10D User's Guide
Chapter 7 Home Networking
WAN
91