Week 10 - asheesh8/NET-150-TECH-JOURNAL GitHub Wiki
Lab 10-1 Packet Tracer - OSPF Lab
Topology
Routing Tables
R1
- 192.168.10.0 cost 65 - via R3
- 192.168.30.0 cost 65- via R2
- BOTH SAME COST (110/65)
R2
- 10.10.10.0 cost 128 - via R1
- 192.168.10.0 cost 129 - via R1
- 192.168.20.0 cost 65 - via R1
- LOWER COST = 192.168.20.0
R3
- 10.10.20.0 cost 128 - via R1
- 192.168.20.0 cost 65 - via R1
- 192.168.30.0 cost 129 - via R1
- LOWEST COST NET = 192.168.20.0
OSPF PROCESS INFORMATION
R1 - Routing process of OSPF 1 - ID 192.168.20.1
- AREA BACKBONE - 1
- num of interfaces - 3
- OSPF algorithm executed - 3 times
- LSAs - 3
R2 - Routing process of OSPF 1 - ID 192.168.30.1
- AREA BACKBONE - 1
- num of interfaces - 2
- OSPF algorithm executed - 4 times
- LSAs - 3
R3 - Routing process of OSPF 1 - ID 192.168.10.1
- AREA BACKBONE - 1
- num of interfaces - 2
- OSPF algorithm executed - 2 times
- LSAs - 3
Key Commands
show ip ospf xx
show ip ospf neighbor
show ip route ospf -only ospf learned routes
router ospf 1 - enter process
##Configuring OSPFv2 Cisco Routers Configuration: 1 - router ospf 1 to start the process 2 - network x.x.x.x 0.0.0.255 area 0 to advertise networks + wildcard mask for /24 is always going to be 0.0.0.255
Some Troubleshooting: 1 - show ip ospf neighbor first was empty on R1 at first but I learned OSPF needs configured to form adjacent first. 2 - Once all the 3 routers were done, neighbors shown auto.