I`m Junhyeok KIm CMT 2023.05 ~ ing* Management site migration from existing firewall to new firewall- Migrate data and settings in accordance with existing usage standards such as existing policies, routing, and VPN- Equipment redundancy, mounting, and installation- Monitoring after firewall installation- Change and delete policies related to internal/external bands according to traffic and logs after monitoring- Ongoing maintenance after periodic inspection* Control- Site network and security equipment control in progress- Change or add firewall policy or routing IP band through coordination with the server team- Support when changing or adding network equipment and internal office network-related equipment- IPS, web firewall, firewall log management and immediate response when security-related issues occur * Switch configuration - Internal band configuration through VLAN settings- L3 band setting after completing internal band Up-Link configuration- Access control settings through ACL- Ongoing maintenance and migration or additional installation after equipment installation* Firewall configuration- Respond after policy configuration and security log analysis- VPN redundancy and single VPN communication method configuration- Centralized VPN configuration through VPN- Internal/external communication schedule configuration and IPS, antivirus, trusthostNEWGENS 2020 ~ 2023* Participation in BMT, POC and installation before equipment delivery- Preparation for building a nationwide optical equipment network through ROADM- Switch configuration for internal band construction- Check optical equipment installation and communication status by region* MS data center DCI network construction- Setting up and installing DCI transmission equipment for high-speed data transmission* Installation and maintenance of security equipment, routers and switch equipment for each domestic telecommunication company* Switch configuration - Internal band configuration through VLAN settings- Set L3 switch after completing internal band Up-Link configuration- Access control settings through ACL- Ongoing maintenance and migration or additional installation after equipment installation* Firewall configuration- Policy composition and security log analysis- Internal/external communication schedule configuration and IPS, antivirus, trusthosh