The integrated security service protects the customer's intranet and services via a comprehensive expert security system (intrusion detection, intrusion interception, security diagnosis, real-time security control). Intrusion interception system (firewall) A firewall is a network component that serves to protect an inner network from any intrusion of an external network. In general, the firewall is a system which protects inner computer resources from the intrusion of illegal program users, and it functions as its backup hardware and software. Intrusion detection system (IDS:Intrusion detection System) The system monitors all user information in real time and instantly detects computer virus (or virusthreats), "system failures" (sounds more natural than irregular accesses), misuses, and abuses. Real-time monitoring Real-time and hourly details of network utilization, classified search for the utilization details by computer, user, and service, and real-time decoding of remote users' commands are accessible (or assured). Hacking detection / protection / warnings Real-time hacking detection and the following network protection Provide and monitor real-time information on hacking to administrators (hackers, victims, status, preventive measures, etc.). Provide real-time specifics about hacking to track down hackers. Vital Information Management Administrate and inspect web-mail / e-mail transmission information (sender, recipient, etc.) and contents (body, attachment). Manage Telnet, FTP, rlogin particulars. Inspection/reporting Provide enhanced administration efficiency over network services and consistent security service. Provide guarantee for interoperability among all types of solutions. Provide proven service via KORNET's direct line additional security service. Convenient implementation of new solutions upon today's constantly changing security infrastructures. Provide information and professional training pertaining to security service.

Security service Installation fee lease service remote monthly equipment configuration IDS Lite 300,000 400,000 250,000 under 10M Standard 300,000 760,000 370,000 under 100M Premium 900,000 2,800,000 960,000 under Giga Firewall Lite 300,000 220,000 150,000 under 10M Standard 300,000 500,000 300,000 under 100M Medium 900,000 1,900,000 800,000 under 600M Premium 300,000 2,700,000 960,000 under Giga Anti-Virus 1~25 300,000 30,000 per server 26~50 27,000 per server 51~ contract rate

Product name Equipment Characteristics Function Lite Secuiwall 10S Recommended number of clients: 10 users at most Simultaneous sessions: - Troughput : - Recommended installation : small enterprise (10 users at most) Packet Filtering Hacking Defence Mail Security NAT Mode Reporting URL Filtering QOS Spam Screen Loadbalancing Bridge Mode High Available (H/A) VLAN DMZ - ETC - Available detail question Standard Secuiwall 100S Recommended number of clients: 10 users at most Simultaneous sessions: 150,000 Troughput : 200M Recommended installation : Small and medium enterprise, PC center Medium Secuiwall 500S Recommended number of clients:- Simultaneous sessions: 600,000 Troughput : 1G Recommended installation : large corporations, government and public offices Premium Secuiwall 1000S Recommended number of clients:- Simultaneous sessions: 800,000 Troughput : 2G Recommended installation : government and public offices College Product name Equipment Characteristics Function Lite Watchguard V10 Recommended number of clients: 5 users at most Simultaneous sessions: 2,000 Troughput : 75M Recommended installation : small enterprise (VPN) Packet Filtering Hacking Defence Mail Security NAT Mode Reporting URL Filtering Loadbalancing VPN High Available (H/A) VLAN QOS SNMP Spam Screen DMZ - ETC - Available detail question Standard Watchguard V60L Recommended number of clients: 10 users at most Simultaneous sessions: N/A Troughput : 100M Recommended installation : Small enterprise Medium Watchguard V100 Recommended number of clients:- Simultaneous sessions: 250,000 Troughput : 600M Recommended installation : Small and medium corporations, PCcenter College Premium Watchguard V200 Recommended number of clients: 100 users at most Simultaneous sessions: 500,000 Troughput : 2G Recommended installation : Large corporations and College Product name Equipment Characteristics Function Lite Sniper Standard Recommended number of clients: 200 users at most Network Traffic : under 40M Recommended installation : small and medium corporations Live Monitoring Detection/ Defense/Alarm Main Data Management Total Reporting Security inspection - ETC - Available detail question Standard Sniper Professional Recommended number of clients: 200~400 users at most Network Traffic : under 80M Recommended installation : small and medium corporations largo corporations Premium Sniper Giga Recommended number of clients: - Network Traffic : over 1500M Recommended installation : large corporations, government and public offices