Specifications

Chapter 2. Planning for Router Configuration 39

RFC 1483/RFC 1490 Link Protocols

The Link Protocol RFC 1483 is a multiprotocol encapsulation method over ATM and is used by ATM routers.

RFC 1490 is a multiprotocol encapsulation method over Frame-Relay and is used by Frame-Relay routers.

RFC 1483 and RFC 1490 combined with the IP, IPX, or Bridging Network Protocols share the same configuration

characteristics, except for the connection identifiers: VPI/VCI numbers are used for RFC 1483 and a DLCI

number is used for RFC 1490.

Obtain the information as described in the appropriate section. This data will be used later to configure your router

using the Command Line Interface (see Configuration Tables, on page 48).

IP Routing Network Protocol

VPI and VCI Numbers (for RFC 1483)

The VPI and VCI numbers apply to ATM routers only. Your router may have been preconfigured with

VPI/VCI numbers. If not, you will have to obtain these numbers from your Network Service Provider

and then configure them.

If you are connecting to multiple remote sites, you will need to obtain additional VPI and VCI numbers

from your Network Service Provider and/or Network Access Provider. These numbers identify the

remote destination and must, therefore, be unique for each remote.

DLCI (for RFC 1490)

The DLCI number applies to Frame-Relay routers only. Your Network Service Provider or your

Network Access Provider will provide you with a Data Link Connection Identifier (DLCI). The DLCI is

an address identifying your connection.

DNS Internet Account Information (optional)

This information is obtained from the Network Service Provider. Consult with you Network Service

Provider to find out if you need to enter the following information:

¥ DNS server address

¥ DNS second server address

¥ DNS domain name

IP Routing Entries

For the Ethernet Interface

This information is defined by the user or the Network Administrator.

Ethernet IP Address (Local LAN)

An Ethernet LAN IP address and subnet mask are required for the routerÕs local Ethernet LAN

connection.