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Access Control

Access control servers determine who may access a network and what services they are authorized to use. They store a profile containing authentication and authorization information for each customer to use. Authentication information validates users' identity, and authorization information determines what they can access. In the physical security analogy, access control servers are equivalent to the access card, keys, and the gatekeeper who oversees security.

CiscoSecure Access Control Server

The CiscoSecure Access Control Server (ACS) for Windows NT is one of many solutions in the Cisco suite of specialized security software solutions for authentication, authorization, and accounting (AAA). CiscoSecure ACS for Windows NT delivers easy-to-use AAA services for both small and large access environments. It is a tightly-integrated, Windows NT service that simplifies the deployment and operation of differentiated services such as Dial VPNs, time-of-day access control, and definable degrees of secured communication. CiscoSecure ACS can be used for the initial implementation of security administration and then scaled up to support more complex environments and evolving policy. The software is built on an architecture that can expand to meet the needs of distributed environments while servicing thousands of ports using TACACS+ and RADIUS simultaneously. The centralization of AAA complements the rollout of any access infrastructure.

Key Strengths / Features / Benefits

• Easy of use — The HTML user interface provides a ubiquitous interface that simplifies and distributes configuration for user profiles, group profiles, and ACS configuration.

• Integration — Tight coupling with Cisco IOS software facilitates features such as Multichassis Multilink Point-to-point Protocol and Cisco IOS command authorization.

• Scalability — CiscoSecure ACS is built to support large networked environments with support for redundant servers and users database backup.

• Management — Windows NT database support uses and consolidates Windows NT username / password management, and Windows NT Performance Monitor support for real-time statistics viewing.

• Administration — Different access levels for each CiscoSecure administrator, and the ability to group network devices, enables easier management of these devices.

• Product flexibility — Because Cisco IOS software has embedded support for AAA, ACS can be used across virtually any network access server (NAS) that Cisco sells. (IOS version must support RADIUS or TACACS+.) 

• Protocol flexibility — The CiscoSecure ACS includes simultaneous TACACS+ and RADIUS support for a flexible solution with Dial VPN support available at the origin and termination of Internet Protocol security, IPSec, and PPTP tunnels.

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