Concentrator Site-to-Site Connections

Chapters 7 and 8 focused on using the concentrator to terminate remote access sessions: IPsec, PPTP, L2TP/IPsec, and WebVPN. Most people assume that the concentrator's primary purpose is for remote access connectivity; however, you can also use the concentrator to set up site-to-site connections. With Cisco concentrators, site-to-site sessions commonly are referred to as LAN-to-LAN (L2L) connections. Because Cisco concentrators are fully compliant with IPsec, it is easy to use a concentrator to terminate L2L sessions with other VPN gateway devices such as Cisco routers, PIX and ASA security appliances, other VPN 3000 concentrators, and other vendors' VPN gateway products.

This chapter will focus on using a VPN 3000 concentrator to terminate L2L sessions by covering the following items:

  • L2L Connectivity Example
  • ISAKMP/IKE Phase 1 Preparation
  • Adding Site-to-Site Connections
  • Address Translation and L2L Connections

Part I: VPNs

Overview of VPNs

VPN Technologies




Part II: Concentrators

Concentrator Product Information

Concentrator Remote Access Connections with IPsec

Concentrator Remote Access Connections with PPTP, L2TP, and WebVPN

Concentrator Site-to-Site Connections

Concentrator Management

Verifying and Troubleshooting Concentrator Connections

Part III: Clients

Cisco VPN Software Client

Windows Software Client

3002 Hardware Client

Part IV: IOS Routers

Router Product Information

Router ISAKMP/IKE Phase 1 Connectivity

Router Site-to-Site Connections

Router Remote Access Connections

Troubleshooting Router Connections

Part V: PIX Firewalls

PIX and ASA Product Information

PIX and ASA Site-to-Site Connections

PIX and ASA Remote Access Connections

Troubleshooting PIX and ASA Connections

Part VI: Case Study

Case Study


The Complete Cisco VPN Configuration Guide
The Complete Cisco VPN Configuration Guide
ISBN: 1587052040
EAN: 2147483647
Year: 2006
Pages: 178
Authors: Richard Deal © 2008-2020.
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