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IPv6 in practice lab 4 of 12

Static routes and OSPFv3 across IOS, Junos and RouterOS

Join an office and a depot across three routers from three vendors. Build IPv6 static routes with global and link-local next hops, run OSPFv3 over the top, steer traffic with cost, and watch floating statics take over when OSPFv3 stops.

Run this lab

It needs Lite: its 5 nodes are set to 6 vCPU and 5,888 MB in total. That fits the free demo too.

In your workspace: Shared, then IPv6 in practice across vendors guided labs, then 04 - Static routes and OSPFv3 across IOS Junos and RouterOS

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Level
Intermediate
Time
About 75 minutes
Nodes need
6 vCPU, 5,888 MB
Smallest plan
Lite

The scenario

Kestrel Freight's office (H1) and its new depot (H2) are joined by three routers that came from three different projects: R1 runs IOS, SRX1 runs Junos, and CHR1 runs RouterOS. Today only their own links work. You route between the sites with statics, replace them with OSPFv3, and then keep the statics as a safety net.

Link or LANPrefixAddresses
R1 to SRX12001:db8:100:a::/64R1 Gi0/0 ::1, SRX1 ge-0/0/0 ::2 (link-local fe80::1 and fe80::2)
SRX1 to CHR12001:db8:100:b::/64SRX1 ge-0/0/1 ::2, CHR1 ether1 ::3
CHR1 to R1 (metered)2001:db8:100:c::/64CHR1 ether2 ::3, R1 Gi0/1 ::1 (R1's link-local is fe80::1)
Office LAN2001:db8:100:10::/64R1 Gi0/2 ::1, H1 ::10
Depot LAN2001:db8:100:20::/64CHR1 ether3 ::1, H2 ::10
Loopbacks2001:db8:100:ffff::/64R1 ::1, SRX1 ::2, CHR1 ::3, each a /128
DeviceRunsHow to log in
R1Cisco IOSv 15.9The console opens at >; enable has no password.
SRX1Juniper vSRX 23.4lab / lab123. It takes about 10 minutes to boot.
CHR1MikroTik RouterOS 7.14admin / Lab-admin1
H1, H2Alpine Linuxroot, no password.

What you’ll practise

  • Write IPv6 static routes with global and link-local next hops on IOS, Junos and RouterOS
  • Explain why a link-local next hop needs an exit interface
  • Bring up OSPFv3 across IOS, Junos and RouterOS over link-local addresses
  • Change the path with OSPFv3 cost and prove it with traceroute
  • Use floating static routes as a backup for OSPFv3

The tasks

  1. Start the Linux hosts
  2. Static routes with global and link-local next hops
  3. OSPFv3 on three vendors
  4. Steer traffic away from the metered link
  5. Lose OSPFv3 and fall back

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 Static routes and OSPFv3 across IOS Junos and RouterOS5 nodes, 5 links. Every link is listed as text below the diagram.R1SRX1CHR1H1H2Gi0/2eth0ether3eth0Gi0/0ge-0/0/0ge-0/0/1ether1ether2Gi0/1
5 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • R1 Gi0/0 to SRX1 ge-0/0/0
  • SRX1 ge-0/0/1 to CHR1 ether1
  • CHR1 ether2 to R1 Gi0/1
  • R1 Gi0/2 to H1 eth0
  • CHR1 ether3 to H2 eth0
Nodes in Static routes and OSPFv3 across IOS, Junos and RouterOS, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
R1Cisco IOSvvios-adventerprisek9-m.spa.159-3.m91 vCPU, 512 MB
SRX1Juniper vSRX NextGen templatevsrxng-23.4R2-S3.92 vCPU, 4,096 MB
CHR1MikroTik RouterOSmikrotik-7.14.21 vCPU, 256 MB
H1Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
H2Alpine Linuxclbalpinebase-alpine-base-3-20-31 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 IPv6 in practice across vendors guided labs.

  3. Open 04 - Static routes and OSPFv3 across IOS Junos and RouterOS 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.

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