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Extranet VPN (Inter-Organization) Recommended Config

Does Cisco have a recommended configuration for “Extranet” (inter-organizational) IPSEC VPNs between autonomous networks; taking into account RFC1918 overlap, Bi-NAT, Routing, ACLs, etc.?

The PIX <> 3005 w/ overlapping address space seems like a good place to start, but ....

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Re: Extranet VPN (Inter-Organization) Recommended Config

Site-to-Site and Extranet VPN Business Scenarios

This chapter explains the basic tasks for configuring IP-based, site-to-site and extranet Virtual Private Networks (VPNs) on a Cisco IOS VPN gateway using generic routing encapsulation (GRE) and IPSec tunneling protocols. Basic security, Network Address Translation (NAT), Encryption, Cisco IOS weighted fair queuing (WFQ), and extended access lists for basic traffic filtering are configured.

http://www.cisco.com/univercd/cc/td/doc/product/core/7100/swcg/6342gre.htm

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