, : -- -- DHCP : 73 DHCP Cisco Unified Communications Manager (CUCM) 28, 2017 500 0 0 3 Cisco ASA DHCP 29, 2018 360 0 0 5 , DHCP 27, 2018 160 0 0 5 DHCP Cisco 02, 2018 280 0 0 3 DHCP Cisco 13, 2018 90 0 0 6 DHCP: 150 66 10, 2018 4850 10 0 2 DHCP CentOS Ubuntu 20, 2019 8900 20 0 5 DHCP Snooping Dynamic Arp Inspection Cisco 07, 2019 3020 10 0 3 DHCP- HSRP 08, 2020 370 10 0 3 DHCP Cisco 16, 2020 490 0 0 8 1 2 3 4 5 6 7 8