OSPF – Open Shortest Path First is a typical link-state routing protocol. This is a widely used protocol in large-sized enterprise networks. In this article, we will guide you through configuring the basic OSPF routing protocol. Stay tuned below for more details.
OSPF routing protocol configuration
Looking at the diagram above, you will notice the presence of 3 routers.
Router HN: interface serial0/3/0(s0/3/0) IP 192.168.1.1 connects to NA router while interface f0/0 IP 172.16.1.1 connects to PC1
Router NA: interface serial0/3/0(s0/3/0) IP 192.168.1.2 connecting to Router HN
HCM router: interface serial0/3/1(s0/3/1) IP 192.168.2.1 connects to NA router while interface f0/0 IP 10.1.1.1 connects to PC2
There are also 2 PCs present:
- PC1: IP 172.16.1.2 connects to interface f0/0 Router HN
- PC2: IP 10.1.1.2 connects to interface f0/0 Router HCM
Configuration for Router
Router HN:
Router(config)#hostname Router HN Router(config)#hostname RouterHN RouterHN(config)#int s0/3/0 RouterHN(config-if)#ip address 192.168.1.1 255.255.255.0 RouterHN(config-if)#no shutdown RouterHN(config-if)#clock rate 64000 RouterHN(config-if)#exit RouterHN(config) # ——————————————– RouterHN(config)#int f0/0 RouterHN(config-if)#description “Connect to PC1” RouterHN(config-if)#ip address 172.16.1.1 255.255.255.0 RouterHN(config-if)#no shutdown RouterHN(config-if)#exit RouterHN(config) # |
Router NA:
Router(config)#hostname RouterNA RouterNA(config)#int s0/3/0 RouterNA(config-if)#ip address 192.168.1.2 255.255.255.0 RouterNA(config-if)#no shutdown RouterNA(config-if)#exit RouterNA(config) # |
————————————————-
RouterNA(config)#int s0/3/1
RouterNA(config-if)#description “Connect to Router HCM”
RouterNA(config-if)#ip address 192.168.2.2 255.255.255.0
RouterNA(config-if)#no shutdown
RouterNA(config-if)#clock rate 64000
RouterNA(config-if)#exit
RouterNA(config) #
Router HCM:
Router(config)#hostname RouterHCM RouterHCM(config)#int s0/3/1 RouterHCM(config-if)#description “Connect to Router NA” RouterHCM(config-if)#ip address 192.168.2.1 255.255.255.0 RouterHCM(config-if)#no shutdown RouterHCM(config-if)#clock rate 64000 RouterHCM(config-if)#exit RouterHCM(config) # ————————————————————– RouterHCM(config)#int f0/0 RouterHCM(config-if)#description “Connect to PC 2” RouterHCM(config-if)#ip address 10.1.1.1 255.255.255.0 RouterHCM(config-if)#no shutdown RouterHCM(config-if)#exit RouterHCM(config) # |
https://thuthuat.taimienphi.vn/cau-hinh-giao-thuc-dinh-tuyen-ospf-4548n.aspx
For PC :
- PC1: ip address 172.16.1.2, subnetmask: 255.255.255.0 gateway: 172.16.1.1
- PC2: ip address 10.1.1.2, subnet mask: 255.255.255.0 gateway: 10.1.1.1
Above, we have reviewed the basic operation of the OSPF protocol in the CCNA program. This is a powerful protocol, fast convergence, can run on large-scale networks and especially a standardized protocol that can run on many product lines of many different brands, so it is used a lot in practice. Also refer to