Introducing The Contivity15; The Contivity - Nortel Contivity 2600 Getting Started

Chapter 1
Introducing the Contivity

The Contivity

The Nortel Networks Contivity 2600 provides scalable, secure, manageable
extranet access for up to 1000 simultaneous users across the Public Data Network
(PDN).
The Contivity's features include the most popular tunneling protocols: IP Security
(IPsec), Point-to-Point Tunneling Protocol (PPTP), Layer 2 Forwarding Tunneling
Protocol (L2TP), and Layer 2 Forwarding (L2F). IPsec uses digital certificates,
password-based keys, and tokens for authentication; PPTP, L2TP, and L2F use
Challenge Handshake Authentication Protocol (CHAP) or Password
Authentication Protocol (PAP) for authentication. The PPTP and L2TP
implementations for the Contivity support MS-CHAP authentication with 56- to
128-bit key encryption. 1Figure 1 shows an intranet and an extranet.
Getting Started with the Contivity 2600
15