Nortel Networks 7400 - Manual (Page 230)

Intranet IP-VPN (Virtual Private Network) Solution 221
IPSec
termination Firewall
Contivity VPN
Switch
Contivity VPN
Switch
Contivity VPN
Switch
Contivity VPN Switch
Site 4 Branch Site 3 Headquarters
Site 2 Branch Site 1 Branch
IPSec Tunnels
Dial access
DSL access
IPSec tunnels Internet traffic
Cable access
ATM/FR access
LAN
Managed IP
Network or Internet
Secure Remote Connectivity - Intranet IP-VPN
(Virtual Private Network) Solution
Customer Needs
• Integrate inter-office communications across an IP infrastructure
• Minimise expense of leased lines and international private line circuits
• Leverage Internet economics in the WAN
• Provide encryption and strong authentication between sites
• Implement a low-cost mesh between sites
Nortel Networks Solution
The Nortel Networks Contivity VPN Switch
integrates all of the elements needed to build a high
performance, scalable and secure VPN – routing,
firewall, bandwidth management, encryption,
authentication and data integrity – into one single
platform for secured tunnelling across the Internet.
The range of VPN solutions in the Contivity portfolio
allows the implementation of solutions tailored to
fit small, medium and large companies.
• Contivity switches are placed at each
branch office
• Connectivity into the managed IP network
is via any available transport technology
• Secure IPSec tunnels encrypt and encapsulate
traffic between sites
Figure 1: Nortel Networks Intranet IP-VPN Solution
Business Connectivity via the Internet