, : -- -- VLSM : 7 : VLSM 30, 2019 44000 1000 2 11 EIGRP 27, 2015 1000 0 0 4 RIPv1 RIPv2: ? 19, 2019 14000 0 0 3 EIGRP: , 21, 2020 7000 0 0 13 RIP (Routing Information Protocol) 01, 2020 18000 0 0 9 : IPv6 - 06, 2020 5000 0 0 11 (Cisco) 01, 2021 2000 0 0 6