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JNCIP-ENT lab 2 of 19

OSPFv3 realms and virtual links

Build OSPFv3 across three areas, repair a disconnected area with a virtual link, read the OSPFv3 LSA types, and carry IPv4 in an ipv4-unicast realm.

Run this lab

It needs Standard: its 4 nodes are set to 10 vCPU and 11,264 MB in total.

In your workspace: Shared, then JNCIP-ENT JN0-650 guided labs, then 02 - OSPFv3 realms and virtual links

Run it on Standard from £5 a day

The free demo can’t run it: it has 6 vCPU and 8 GB, and this lab’s nodes need 10 vCPU and 11,264 MB together. Every lab plan includes every guided lab.

Level
Advanced
Time
About 80 minutes
Nodes need
10 vCPU, 11,264 MB
Smallest plan
Standard

The scenario

Northmere has bought a small haulier in Goole, whose router R3 already runs OSPFv3 in area 3. The only way to reach it is through R2, which sits in area 1, so area 3 doesn't touch the backbone. You'll build OSPFv3 on R1 and R2, see the problem, fix it with a virtual link, and then read how OSPFv3's LSAs differ from OSPFv2's. A later step runs IPv4 through OSPFv3 on one link, as a trial for dropping OSPFv2.

DeviceInterfaceAddressOSPFv3
R1ge-0/0/12001:db8:14::1/64Area 0, to R4
R1ge-0/0/02001:db8:12::1/64, 10.0.12.1/30Area 1, to R2
R1lo02001:db8:255::1/128, 10.255.0.1/32Area 0, passive
R2ge-0/0/02001:db8:12::2/64, 10.0.12.2/30Area 1, to R1
R2ge-0/0/12001:db8:23::2/64Area 3, to R3
R2lo02001:db8:255::2/128, 10.255.0.2/32Area 1, passive
R3Gi0/0, Lo02001:db8:23::3/64, 2001:db8:255::3/128Area 3
R3Lo10, Lo112001:db8:30:1::1/64, 2001:db8:30:2::1/64Area 3, Goole LANs
R4Gi0/0, Lo02001:db8:14::4/64, 2001:db8:255::4/128Area 0
R4Lo102001:db8:40:1::1/64Area 0, head office LAN

All links are point-to-point. R3 and R4 are ready for you.

What you’ll practise

  • Configure OSPFv3 on Junos and read its LSA types
  • Explain why an area needs the backbone, and repair it with a virtual link
  • Summarise with area-range in OSPFv3
  • Run an ipv4-unicast realm
  • Export external routes into OSPFv3

The tasks

  1. Build OSPFv3 and find what changed from OSPFv2
  2. Stretch the backbone with a virtual link
  3. Summarise area 3
  4. Carry IPv4 in OSPFv3 with a realm
  5. Export an external route

The Lab Tasks pane has the scenario, these tasks, the checks to run, hints and the full solution.

Topology and devices

The network as it opens in EVE-NG, drawn from the lab’s own canvas, and the image each node runs.

Topology of OSPFv3 realms and virtual links4 nodes, 3 links. Every link is listed as text below the diagram.R1R2R3R4ge-0/0/1Gi0/0ge-0/0/1Gi0/0ge-0/0/0ge-0/0/0
4 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • R1 ge-0/0/0 to R2 ge-0/0/0
  • R1 ge-0/0/1 to R4 Gi0/0
  • R2 ge-0/0/1 to R3 Gi0/0
Nodes in OSPFv3 realms and virtual links, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
R1Juniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
R2Juniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
R3Cisco IOSvvios-adventerprisek9-m.spa.159-3.m91 vCPU, 512 MB
R4Cisco IOSvvios-adventerprisek9-m.spa.159-3.m91 vCPU, 512 MB

How to open this lab

  1. Sign in to your workspace at lab.cloudlabbox.com.

  2. In File Manager, open Shared, then the folder JNCIP-ENT JN0-650 guided labs.

  3. Open 02 - OSPFv3 realms and virtual links and start its nodes, then open Lab Tasks for the scenario and the steps.

The lab is read-only. You can start the nodes and configure the devices, but changes to the topology can’t be saved. To change it, rebuild it in your own folder.

More JNCIP-ENT labs

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CloudLabBox is independent of Cisco and Juniper Networks. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.