OSPF Lab1

Click on the diagram to enlarge

Overview: I created this lab today for basic OSPF concepts.
Objectives:
1. Create POINT_TO_POINT OSPF on the link between R1 and R2.
2. Create loopback interfaces on R1 and advertise them into area 1. Configure the loopbacks to reflect networks subnets( this can be done by configuring the ospf network under these loopsbacks as POINT_TO_POINT links)
3. Create a BROADCAST network between R2, R3 and R4 and put it under area2
4. Create a loopback on R3 and configure it in area2 (easy one).
5. Create a loopback on R4 and configure it in area3. Try to ping lo on R3 and lo on R4 from R1. Ping to lo of R4 fails.
6.  Create a virtual link between R4 and R2 over trasit area2. Perfom ping test mentioned above again.
The ping to lo  on R4 from R1 should be successful.

Verification:
sh ip route
sh ip ospf
sh ip ospf nei
sh ip ospf adj
sh ip ospf route
sh ip ospf database
debug ip ospf packet
debug ip ospf adj

Also use wireshark to learn about the LSA types. You will mostly see LSA1 and LSA2s in this lab.