Additional Information: Maximum LAN-to-LAN Sessions: 250 Encryption Method: Hardware Encryption (SEP) Module: 1 High-Performance, Distributed-Processing Architecture: Cisco SEP modules provide hardware-based encryption, ensuring consistent performance throughout the rated capacity Large-scale tunneling support provided for WebVPN (SSL), IPSec, PPTP and L2TP/IPSec connections Scalability: System architecture is designed to supply consistent, high-availability performance All digital design provides the highest reliability and 24-hour continuous operation Robust instrumentation package provides run-time monitoring and alerts Microsoft compatibility offers large-scale client deployment and smooth integration with related systems Integrated device clustering (load balancing) technology Security: Full support of current and emerging security standards allows for integration of external authentication systems and interoperability with third-party products Firewall capabilities through stateless packet filtering and address translation to ensure the required security of a corporate LAN User and group level management offers maximum flexibility. WebVPN offers granular access control per group and detailed logging information High Availability: Redundant subsystems and multichassis failover capabilities ensure maximum system uptime Extensive instrumentation and monitoring capabilities provide network managers with real-time system status and early-warning alerts Security: Authentication and Accounting Servers: Support for redundant external authentication servers: Kerberos/Active Directory authentication Microsoft NT Domain authentication Microsoft NT Domain authentication with Password Expiration (MSCHAPv2)-IPsec only Internet-Based Packet Filtering: Source and destination IP address Port and protocol type Fragment protection FTP session filtering Site-to-site filters and NAT (for overlapping address space) RSA Security Dynamics (SecurID Ready), including native support for RSA 5 (Load Balancing, Resiliency): Internal authentication server for up to 100 users X.509v3 digital certificates (including CRL/LDAP and CRL/HTTP, CRL Caching and Backup CRL Distribution Point support) RADIUS accounting TACACS+ Administrative user authentication Depth: Unit without front bezel or SEPS/PS: 15" Unit with front bezel, no SEPS/PS: 16-3/16" Unit with front bezel and SEPS/PS: 16.75" .