The Juniper Networks Integrated Security Gateways (ISG) are purpose-built, security solutions that leverage a fourth generation security ASIC, the GigaScreen3, along with high-speed microprocessors to deliver unmatched firewall and VPN performance. The Juniper Networks ISG 1000 and ISG 2000 are ideally suited for securing enterprise, carrier and data center environments where advanced applications such as VoIP and streaming media dictate consistent, scalable performance. Integrating best-in-class Deep Inspection firewall, VPN and DoS solutions, the ISG 1000 and ISG 2000 enable secure, reliable connectivity along with network and application-level protection for critical, high-traffic network segments. (Excerpt from Juniper.net)