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Overview:
The Juniper Networks NetScreen-500 system is a purpose-built, integrated security system that provides a flexible, high-performance solution for medium and large enterprise central sites and service providers. The NetScreen-500 network security system integrates firewall, DoS, VPN, and traffic-management functionality in a low-profile, modular chassis. It provides high levels of total throughput for firewall and VPN plus support for virtual systems and security zones. Its flexible and resilient hardware architecture incorporates modular physical interfaces, redundant power supplies, fans, and high-availability interfaces. The NetScreen-500 system is well suited to match the peak load and strong deterrence requirements of the most demanding environments.

The Juniper Networks NetScreen-500 GPRS system combines the hardware-accelerated firewall, VPN, and traffic management capabilities of the NetScreen-500 with enhanced features designed to provide mobile operators with a purpose-built, high-performance, and scalable security solution for protecting GPRS data networks. The NetScreen-500 GPRS solution secures roaming connections using a combination of Stateful inspection, traffic rate limiting, traffic sanity checks, traffic logging, and traffic accounting. These features allow mobile operators to protect their network infrastructure from Denial of Service (DoS) attacks and subscriber hijacking attacks. The NetScreen-500 GPRS features can also be used to control roaming partner network access, in addition to controlling which external networks subscribers may access (through APN filtering). GTP Releases 1997 and 1999 are both fully supported, including charging gateway traffic. The NetScreen-500 GPRS system provides secure, scalable Internet and corporate intranet connectivity from a mobile operator's network.

Integrated security system with security-optimized hardware, operating system, and applications, providing a higher level of security than software-based solutions
Comprehensive, high-availability solution for sub-second failover between interfaces or devices
Full mesh configurations to allow for redundant physical paths in the network, thereby providing maximum resiliency and uptime
Virtual System support to allow partitioning into multiple security domains, each with a unique set of administrators, policies, VPNs, and address books
Interface flexibility for varying network-connectivity requirements and future growth requirements
Virtual Router support to map internal, private, or overlapped IP addresses to a new IP address, providing an alternate route to the final destination and concealing it from public view
Customizable security zones to increase interface density without additional hardware expenditures, lower policy-creation costs, contain unauthorized users and attacks, and simplify management of VPNs
Redundant VPN gateways for an additional level of redundancy in a VPN network, by allowing backup tunnel definitions in the event of a lost VPN connection
Firewall attack protection on every interface, for a secure internal as well as external network
Transparent mode to allow the device to function as a Layer 2 IP security bridge, providing firewall, VPN, and DoS protections, but with minimal change to the existing network
Management through graphical Web UI, CLI, or the NetScreen-Security Manager central management system
Policy-based management for centralized, end-to-end life-cycle management

Policy-based GTP enforcement for all GPRS features
Support for GTP Releases 1997 and 1999
Full support at all GPRS interfaces
Ability to combine multiple interfaces in single device (Gn, Gp, Ga, Gi)
Malicious attack prevention, such as overbilling prevention
Support for IPSec, L2TP, and 802.1q VLANs to logically separate the connections from the mobile operator's network to the external networks, and enable the application of security policies