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Review of Roaming Implementations (RFC2194)

IP.com Disclosure Number: IPCOM000002752D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 29 page(s) / 76K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Aboba: AUTHOR [+5]

Abstract

This document reviews the design and functionality of existing roaming implementations. "Roaming capability" may be loosely defined as the ability to use any one of multiple Internet service providers (ISPs), while maintaining a formal, customer-vendor relationship with only one. Examples of cases where roaming capability might be required include ISP "confederations" and ISP-provided corporate network access support.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 4% of the total text.

Network Working Group B. Aboba

Request for Comments: 2194 Microsoft

Category: Informational J. Lu

AimQuest Corp.

J. Alsop

i-Pass Alliance

J. Ding

Asiainfo

W. Wang

Merit Network, Inc.

September 1997

Review of Roaming Implementations

1. Status of this Memo

This memo provides information for the Internet community. This memo

does not specify an Internet standard of any kind. Distribution of

this memo is unlimited.

2. Abstract

This document reviews the design and functionality of existing

roaming implementations. "Roaming capability" may be loosely defined

as the ability to use any one of multiple Internet service providers

(ISPs), while maintaining a formal, customer-vendor relationship with

only one. Examples of cases where roaming capability might be

required include ISP "confederations" and ISP-provided corporate

network access support.

3. Introduction

Considerable interest has arisen recently in a set of features that

fit within the general category of "roaming capability" for Internet

users. Interested parties have included:

Regional Internet Service Providers (ISPs) operating within a

particular state or province, looking to combine their efforts

with those of other regional providers to offer service over a

wider area.

National ISPs wishing to combine their operations with those of

one or more ISPs in another nation to offer more comprehensive

service in a group of countries or on a continent.

Businesses desiring to offer their employees a comprehensive

package of access services on a global basis. Those services may

include Internet access as well as secure access to corporate

intranets via a Virtual Private Network (VPN), enabled by

tunneling protocols such as PPTP, L2F, or L2TP.

What is required to provide roaming capability? The following list

is a first cut at defining the requirements for successful roaming

among an arbitrary set of ISPs:

Phone number presentation

Phone number exchange

Phone book compilation

Phone book update

Connection management

Authentication

NAS Configuration/Authorization

Address assignment and routing

Security

Accounting

In this document we review existing roaming implementations,

describing their functionality within this framework. In addition to

full fledged roaming implementati...