Try to solve the lab problem in 10 minutes or less.
Enable OSPF in area 0 between router R1 and R2 on their point-to-point links (Se0/1).
- Advertise Loopback0 address of both routers in area 0.
- Use ‘network‘ command with the most specific wildcard mask to accomplish the task.
Take as much time as you need to answer the following questions:
- What are the OSPF modes of operation available in Cisco® IOS™?
- Which OSPF modes are RFC-based and which are Cisco® proprietary?
- Which layer of OSI model would you classify OSPF to?
- OSPF creates three tables. What are these?
- What is OSPF LSDB?
- What does the ‘link-state’ in OSPF describe?
- What is OSPF hello packet and what is/are its purpose(s) in OSPF domain?
- What are the two link-local multicast addresses reserved for OSPF communication?
- What OSPF parameters must match in OSPF packet to establish full adjacency?
- What is the default destination address OSPF uses to send ‘hello’ packets on point-to-point links?
- What are the five packet types OSPF uses to communicate? What do they do?
- Which command would you use to verify OSPF-enabled interfaces (do not use ‘show run’)?
- Which command would you use to verify the state of the OSPF neighbor?
- What is a ‘router id’ in OSPF?
- How does OSPF selects its ‘router id’?
- Is OSPF ‘router id’ pre-emptive?
- Can you provide at least three commands to display OSPF router id (what are these)?
- What would happen if you tried to enable OSPF protocol in a router that has not a single IP address configured?
- Which command would you use to display LSDB?
- How many point-to-point links does an OSPF router advertise according to LSDB?
- What are the default timers (hello/dead) used on point-to-point links?
- What is/are other OSPF modes of operation that are compatible with the default one used on p2p links?
- What do you need to configure to make other mode(s) compatible with point-to-point mode?
- Which DBD parameter must match between OSPF neighbors to get past 2-way state?
- What is the type of LSA (name and number) that describes the links to other routers in the same area?
- Which command would you use to display LSDB entries about LSA type 1?
- In case of point-to-point OSPF mode, what does LSDB show as far as the following are concerned (assuming default ospf mode): link connected to, link id, link data?
When you have solved the problem check the hint(s) below:
- Does the ping from 10.0.1.1 towards 10.0.2.2 work?
If you find these labs useful, I would appreciate your feedback. Please send me an email as per following:
Address: linuxed.jr at gmail.comSubject: ten minute lab
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Thank you for your time.
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