User's Manual

VSG-1200 User’s Guide
Chapter 4 LAN, WAN and Server Setup 53
CHAPTER 4
LAN, WAN and Server Setup
This chapter shows you how to configure LAN and WAN ports and server settings.
4.1 Factory Ethernet Defaults
The Ethernet parameters of the VSG are preset to the following values:
1 WAN IP address of 192.168.1.1 with subnet mask of 255.255.255.0.
2 LAN IP address of 10.59.1.1.
3 DHCP server enabled on the LAN with a 252 client IP address pool starting from
10.59.1.2
These parameters should work for the majority of installations. If you wish to change the
factory defaults or to learn more about TCP/IP, please read on.
4.2 LANs and WANs
A LAN (Local Area Network) is a computer network limited to the immediate area, usually
the same building or floor of a building. A WAN (Wide Area Network), on the other hand, is
an outside connection to another network or the Internet.
4.3 IP Address Assignment
A static IP is a fixed IP that you configure on the VSG. A dynamic IP is not fixed; the DHCP
server provides an IP address to the VSG each time it connects to the network. When an
Ethernet device is configured to obtain a dynamic IP address from a DHCP server, it is known
as a DHCP client.
4.4 DHCP Configuration
DHCP (Dynamic Host Configuration Protocol) allows the individual clients (Ethernet device)
to obtain the TCP/IP configuration from a centralized DHCP server. The VSG has built-in
DHCP server capability, which means it can assign IP addresses, an IP default gateway and
DNS servers to computer systems that support the DHCP client when this feature is activated.
The VSG can also act as a surrogate DHCP server where it relays IP address assignment from
the actual DHCP server to the clients.