PRODUCT OVERVIEW
HIGHLIGHTS, FEATURES, AND BENEFITS
Cisco Access Registrar 3.5 Highlights
• Expanded platform and OS support-Cisco Access Registrar adds support for RedHat Linux on PC-based computers (Cisco Access Registrar 3.5.2), and Solaris 9 support on Sun Sparc computers (Cisco Access Registrar 3.5.3).
• Expanded database support for AAA-In addition to Oracle 8, Cisco Access Registrar supports Oracle 9 and MySQL 4.0
• database accounting. Cisco Access Registrar can write accounting records directly to an Oracle or MySQL database, with buffering for increased throughput and resilience.
• Expanded Extensible Authentication Protocol (EAP) support-Cisco Access Registrar adds support for Protected EAP (PEAP), subscriber identity module (SIM), and Transport Layer Security (TLS).
• Cisco CDMA2000 IS835-C support-Cisco Access Registrar 3.5 adds packet of disconnect (PoD) during packet data serving node (PDSN) handoff; quality of service (QoS); remote address accounting attributes; MN-HA shared key distribution, prepaid (Cisco Access Registrar 3.5.3), and DNS update.
• Improved performance of grouped AAA method-Cisco Access Registrar offers Parallel-OR and Parallel-AND options in service groups.
• High-speed, queryable identity session cache (Cisco Access Registrar 3.5.2)-A real-time information cache of active users; applications can query the cache using Extensible Markup Language (XML) over User Datagram Protocol (UDP).
• Additional features-Session release based on session age; automatic session timeout based on session inactivity (Cisco Access Registrar 3.5.3); Trusted-ID authorization for transparent autologon in Service Selection Gateway (SSG) environments (Cisco Access Registrar 3.5.3);
• PoD (RFC 3576); HTTP digest authentication for Session Initiation Protocol (SIP) and Web servers; Cisco SSG prepaid support; a view-only administrator; and Java extension point scripts and custom services.
Benefits
• Cisco Access Registrar supports multiple access technologies (dial, wholesale dial, broadband, mobile wireless, wireless LAN, and public wireless LAN) with a single AAA platform.
• Provides service providers with an off-the-shelf, standards-based RADIUS server that offers the flexibility and extensibility previously only available by maintaining internally built versions of public-domain RADIUS software.
• Enables service providers to focus their businesses on specific areas of service delivery by supporting additional wholesale, outsourcing, and roaming service scenarios using proxy RADIUS.
• Reduces operational costs and speeds service rollout by supporting integration with provisioning, billing, and other service-management components using directory or relational database management system (RDBMS) support and scriptable configuration interfaces.
• Efficiently manages resource use by supporting centralized IP address assignment and session limit enforcement across access devices spanning multiple geographic regions and across multiple Cisco Access Registrar servers.
• Allows service providers to extend competitive advantages by rapidly deploying the latest wireless technologies.
PRODUCT ARCHITECTURE
• Whether authentication against a Lightweight Directory Access Protocol (LDAP) directory or Oracle database is required
• Whether a request should be forwarded to an external RADIUS server
• What type of accounting is required
• Whether session limits apply
• Whether an IP address pool has been assigned
Figure 1. Cisco Access Registrar Architecture
FEATURES
Authentication and Authorization
• High-speed internal embedded user database
• Easy, logical grouping of users
• Easy return attributes and check-item configuration
• Ability to enablee and disable user access
• User information can be stored in external datastores
• LDAP directory or Oracle or MySQL database support
– Store return and check-items attributes
– Datastore schema independent
– Add custom logic based on information in user's record
• Advanced RADIUS proxy support for service provider environments
– Include proxy attribute filtering
• EAP support
– Message Digest Algorithm 5 (MD5), LEAP, PEAP (with Microsoft Challenge Handshake Authentication Protocol [MS-CHAP] v2, Generic Token Card [GTC ], and SIM ), and TLS
– EAP Proxy
• IETF RADIUS tunnel support (RFC 2867, RFC 2868)
• Automatic and customizable Reply-Message generation
Accounting
• Local file
– Store accounting records in single file or multiple files
– Automatic file rollover based on file age, size, or specific time
• Proxy
– Option to ignore acknowledgements and continue processing
• Database
– Write accounting records directly to an Oracle or MySQL database
– Schema independent
– Buffering option for higher throughput and fault tolerance
Proxy/Database/LDAP Configuration
• Define a list of remote systems to be used in failover or round-robin modes
• Accept All, Reject All, and Drop Packet outage policies available when no remote systems are available
• Define the individual characteristics of each remote system; for example, ports, timeouts, retries, or reactivate timers
• Sophisticated algorithms to detect status of remote systems
Request Processing Decisions
• Process requests using different methods; for example, use LDAP for some access requests, the internal database for others
• Process requests using a combination of these methods; store an accounting request to a local file and proxy it to a remote RADIUS server
• Split authentication and authorization by selecting one method for authentication and another for authorization (One-Time Password [OTP] server and Oracle database)
• Decide which method to use based on attributes in the request or on Cisco Access Registrar's "environment variables", such as source or destination IP address or UDP port
• Easy method selection based on DNS domain, username prefix, dialed number, calling number, or network access server (NAS), using the Cisco Access Registrar Policy Engine
Session/Identity Tracking and Caching
• Built-in feature to track user sessions and allocate resources
• Enforcement of session limits per user and per group
• Allocation of addresses from IP pools
• Allocation of home agents and on-demand address pools
• Real-time query of the session table using the command-line interface (CLI) or XML over UDP
• Add custom information to the session table
• Configure which attributes to store in the session table
• Manual release of sessions and resources
• Query and release sessions based on session age, username, NAS, and other criteria
• Release sessions and generate PoD
• Automatic session release when accounting stop is lost (inactivity timeout)
• Automatic session release when accounting on/off is detected (system accounting)
• In an environment with multiple Cisco Access Registrars, designate one Cisco Access Registrar to manage all sessions to avoid bypass of session limits and to allocate IP addresses and other resources centrally
• Session information is not lost even if Cisco Access Registrar or the system is restarted
• Session tracking for accounting-only servers
• Configure session key on calling number or other attributes
System Tuning and System Configuration
• Configure Cisco Access Registrar to listen on multiple UDP ports
• Specify which network interfaces to use
• Set the number of simultaneous requests to be processed
• Enable access accept logging
• Regular and advanced duplicate Radius packet detection features
• Extensible attribute dictionary
– Populated with latest attribute definitions, including third-party, vendor-specific attributes
– Easy addition of new attributes
– Variable-length vendor type in vendor-specific attributes
• Specify log file rollover rules
Troubleshooting and Monitoring
• Multilevel debugging output
• Real-time query of processing counters
• Reset processing counters without restarting Cisco Access Registrar
• Query status of all Cisco Access Registrar processes and utilities
• Log files for each Cisco Access Registrar process
• Audit log of all configuration changes
• Direct logs to a syslog server
• RADIUS Simple Network Management Protocol (SNMP) RFC 2618-21 support
• SNMP traps generated for critical events
• Utility to generate RADIUS requests
Configuration
• Powerful configuration utility with interactive and noninteractive modes
• Noninteractive modes allow for configuration automation and operations support system (OSS) integration
• Dynamic configuration feature allows configuration changes to take effect without a server restart
• Command and value recall, inline editing, autocommand completion, and a context-sensitive list of options
Resilience
• Automatic configuration replication to other Cisco Access Registrar servers (server redundancy)
• Specify lists of alternate remote systems for each processing method (remote-system redundancy)
• Specify multiple methods to process a request (processing-method redundancy)
• Automatic server restart
Customization
• Add custom logic to the request processing flow using Tool Command Language (TCL), C or C++, or Java
– Access request and response packets
– Modify processing decisions in real time
– Multiple call-out points to target specific requests
• Create custom processing methods
Solutions
• Cisco PDSN for CDMA2000 mobile wireless
– Home agent allocation for balanced home agent access
– Null password support
– Multiple accounting start/stop detection for roaming users
– CDMA2000 vendor-specific attribute support
– Prepaid billing
– QoS and Remote Address Accounting attributes support
– PoD during PDSN handoff
– MN-HA shared keys distribution for mobile IP
– DNS updateu for IP reachability
• Public wireless LAN solutions for service providers
• Cisco IOS® Software On-Demand Address Pool Manager
– Dynamic, variable size, address pool assignment for Multi Protocol Label Switching (MPLS) VPNs
• Broadband aggregation
– Trusted-ID authorization for transparent autologon (Cisco Access Registrar 3.5.3)
• Other solutions
– Cisco Gateway GPRS Support Node (GGSN) for GPRS
– Cisco Any Service, Any Port (ASAP) solutions
SYSTEM REQUIREMENTS
Table 1. System requirements for Cisco Access Registrar 3.5.
Disk Space |
175 MB (minimum) |
Hardware |
Sun SPARC or x86 |
Memory |
64 MB (minimum) |
Software |
Solaris 8 or 9 for Sun SPARC, RedHat Linux 7.3 for x86 ( Solaris 9 supported in Cisco Access Registrar 3.5.3) |
ORDERING INFORMATION
Table 2. Ordering Information
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