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NVS Cheatsheet for Single-Area OSPF
Basic configurationDisable DNS lookup | no ip domain-lookup | Configure device name | hostname [name] | Privileged exec mode password | enable secret [password] | Console password | password [password] | Copy running to startup config | copy r s |
These commands were executed on all routers! Router 1router ospf 1 | enable ospf | network 192.168.12.0 0.0.0.3
area 0 | configure network statements | show ip ospf neighbor | verify that all routers list all other routers as neighbours | show ip ospf | see process id and router id | show ip ospf interface | detailed list of every OSPF-enabled interface | show ip ospf interface g0/0 | see specific interface | show ip route ospf | cost for routes | auto-cost references-bandwith 100 | sets the reference bandwith | ip ospf cost 1565 | set specific cost | show ip ospf interface brief | verify that ospf is configured | ip ospf priority 255 | set interface priority |
These are the most important commands for R1 concerning OSPF! | | Router 2enable OSPF | router ospf [process-id] | verify OSPF neighbors | show ip ospf neighbor | routing table | show ip route | verify OSPF protocol settings | show ip protocols | verify OSPF interface settings | show ip ospf interface brief | change router IDs using loopback addresses | interface lo0
ip address 1.1.1.1 255.255.255.255
end | configure G0/0 with OSPF priority 0 | interface g0/0
ip ospf priority 100
end |
These are the most important commands for R2 concerning OSPF! Router 3router ospf 1 | enable ospf | network [ip] [subnetmask] area 0 | add network to ospf area | ip ospf priority [number] | set priority to ospf at interface | show ip ospf neighbor | show all devices learned over ospf | clear ip ospf 1 process | reset all the routers of the ospf process | show ip ospf interface | show ospf details | show ip interface brief | show all interfaces | show ip protocols | show all running protocols |
These are the most important commands for R3 concerning OSPF! |
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