ZyXEL Prestige DI-106 Application Notes

ZyXEL Communications, Inc.______________________________________________Prestige Application Notes

Last modified: December 20, 1996

Internet Access for Workstation/PC where ISP assigns a dynamic single IP address

192.68.135.1

204.5.1.1

W/S

192.68.135.3

DNS

Prestige

ISP Gateway

[dynamic address]

192.68.135.2

Note: The IP address shown above are examples only!

This configuration note explains how to set up a workstation on your network to use the Prestige to
connect to the Internet via an ISP. In this configuration, the user has a single user Internet account which
will assign one IP address dynamically. Notice that with this configuration, all stations on the network
will be able to access the Internet, but they will be ‘hidden’ from the outside. That is, from the ISP’s point
of view, they will only be able to ‘see’ the single IP address (in this case, the one dynamically assigned)
There will be two items that you need to set up. These are the workstation and the Prestige.

I. Workstation Setup

To set up the workstation (W/S), you will need to set the following parameters:

• IP Address - the IP address assigned to the workstation itself, in the above example,

‘192.68.135.1’

• Subnet Mask - the subnet mask used for your network. Class C networks generally use a 24-bit

netmask, ‘255.255.255.0’.

• DNS (Domain Name Server) Address - the IP address of the server station on your network that

acts as the DNS. In the above example, ‘192.68.135.2’. Please note that some networks will not
have a DNS. In this situation, you will need to obtain the IP address of a remote DNS from the
ISP.

• Default Gateway - the IP address of the station or device on your network that acts as a default

gateway. That is, any packets without an implicit route to their destination IP address will be
routed to the default gateway. Since the Prestige is connecting to the Internet, the default
gateway in this case would be the IP address of the Prestige, ‘192.68.135.3’.

The procedure for configuring these parameters for your workstation may differ depending on the
type of TCP/IP networking software you are using on your workstation. If you are unfamiliar with
how to set these parameters, you can refer to the technical notes corresponding to your software.

• Trumpet Winsock Windows 3.1 Workstation Setup - see section ‘Internet Access’

• Chameleon LAN Setup - see section ‘Internet Access’

• Windows 95/NT - see section ‘Internet Access’

• MacTCP Setup

II. Prestige Setup

In order to configure your Prestige for this application, make sure you have the following menus
configured correctly.

INET0003: 1

ZyXEL Communications, Inc.______________________________________________Prestige Application Notes

Note that the fields are indicated in bold type.

INET0003: 2