Mục tiêu thực hành:
- Cấu Summary trên Area Border Router (CoreSwitch) cho phép gom lớp mạng trước khi quảng bá Route tới các OSPF Neighbor.
Truy cập vào "Lab 3-8 - Cau hinh dinh tuyen dong OSPF tren Cisco Router v1" tại Public Unetlab Server 24/7 để thực hành.
Cấu Summary trên Area Border Router (CoreSwitch) cho phép gom lớp mạng trước khi quảng bá Route tới các OSPF Neighbor.
- Cấu hình Summary trên CoreSwitch.
router ospf 1area 9 range 10.0.0.0 255.255.0.0network 10.0.0.0 0.0.0.7 area 0network 10.0.0.8 0.0.0.7 area 0network 10.0.10.0 0.0.0.255 area 9network 10.0.11.0 0.0.0.255 area 9network 10.0.12.0 0.0.0.255 area 9network 10.0.13.0 0.0.0.255 area 9network 10.0.14.0 0.0.0.255 area 9network 10.0.15.0 0.0.0.255 area 9network 10.0.16.0 0.0.0.255 area 9network 10.0.17.0 0.0.0.255 area 9network 10.0.18.0 0.0.0.255 area 9network 10.0.20.0 0.0.0.255 area 9network 10.0.30.0 0.0.0.255 area 9network 10.0.40.0 0.0.0.255 area 9network 10.0.50.0 0.0.0.255 area 9
- Kiểm tra các OSPF Routes học được trên Firewall.
Firewall#show ip route ospfCodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route, H - NHRP, l - LISP+ - replicated route, % - next hop overrideGateway of last resort is 10.0.0.9 to network 0.0.0.0O*E1 0.0.0.0/0 [110/31] via 10.0.0.9, 00:00:01, Ethernet0/010.0.0.0/8 is variably subnetted, 4 subnets, 3 masksO IA 10.0.0.0/16 [110/11] via 10.0.0.9, 00:00:01, Ethernet0/0O 10.0.0.0/29 [110/11] via 10.0.0.9, 00:00:01, Ethernet0/0172.16.0.0/16 is variably subnetted, 5 subnets, 2 masksO IA 172.16.0.0/30 [110/21] via 10.0.0.9, 00:00:01, Ethernet0/0O IA 172.16.0.4/30 [110/21] via 10.0.0.9, 00:00:01, Ethernet0/0O IA 172.16.2.0/26 [110/31] via 10.0.0.9, 00:00:01, Ethernet0/0O IA 172.16.2.64/26 [110/31] via 10.0.0.9, 00:00:01, Ethernet0/0O IA 172.16.2.128/26 [110/31] via 10.0.0.9, 00:00:01, Ethernet0/0Firewall#
- Kiểm tra các OSPF Routes học được trên VPN.RT.
VPN.RT#show ip route ospfCodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route, H - NHRP, l - LISP+ - replicated route, % - next hop overrideGateway of last resort is 203.0.3.1 to network 0.0.0.010.0.0.0/8 is variably subnetted, 4 subnets, 3 masksO IA 10.0.0.0/16 [110/11] via 10.0.0.1, 5d04h, Ethernet0/0O 10.0.0.8/29 [110/20] via 10.0.0.1, 5d04h, Ethernet0/0172.16.0.0/16 is variably subnetted, 5 subnets, 2 masksO IA 172.16.0.0/30 [110/20] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.0.4/30 [110/20] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.0/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.64/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.128/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0VPN.RT#
- Nếu tắt cơ chế Summary trên CoreSwitch thì các thiết bị còn lại sẽ học được các mạng Subnet thay vì Summary Network.
CoreSwitch#configure terminalEnter configuration commands, one per line. End with CNTL/Z.CoreSwitch(config)#router ospf 1CoreSwitch(config-router)#no area 9 range 10.0.0.0 255.255.0.0CoreSwitch(config-router)#endCoreSwitch#
VPN.RT#show ip route ospfCodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2ia - IS-IS inter area, * - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static route, H - NHRP, l - LISP+ - replicated route, % - next hop overrideGateway of last resort is 203.0.3.1 to network 0.0.0.010.0.0.0/8 is variably subnetted, 15 subnets, 3 masksO 10.0.0.8/29 [110/20] via 10.0.0.1, 5d04h, Ethernet0/0O IA 10.0.10.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.11.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.12.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.13.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.14.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.15.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.16.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.17.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.18.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.30.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.40.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0O IA 10.0.50.0/24 [110/11] via 10.0.0.1, 00:00:33, Ethernet0/0172.16.0.0/16 is variably subnetted, 5 subnets, 2 masksO IA 172.16.0.0/30 [110/20] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.0.4/30 [110/20] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.0/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.64/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0O IA 172.16.2.128/26 [110/30] via 10.0.0.2, 5d03h, Ethernet0/0VPN.RT#
Thực hành thêm các bài Lab cơ bản khác tại hạng mục Học Network CCNA R&S thông qua các bài thực hành.
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