Concentrator Models
The Cisco VPN 3000 series concentrators, commonly referred to as VPN hardware appliances, originally were built by Altiga. Cisco acquired Altiga in 2000. These concentrators were built primarily to handle large numbers of remote access sessions, but they also support site-to-site connectivity.
Of all of the Cisco VPN offerings, the Cisco VPN 3000 series concentrators provide the most flexible and scalable remote access solution: IPsec, L2TP over IPsec, PPTP, and WebVPN VPN implementations are supported. And Cisco has added many enhanced features to their concentrators to meet their customers’ remote access needs. Cisco currently sells six different models of the 3000 series:
3005— small branch office
3015— small branch office ...
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