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IPv6 in practice lab 5 of 12

IS-IS and BGP: the dual-stack control plane

Run one IGP for both address families and one BGP design for both. Bring up multi-topology IS-IS between IOS and Junos, then iBGP over loopbacks and eBGP to a RouterOS provider, with IPv4 and IPv6 in separate sessions.

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 05 - IS-IS and BGP - the dual-stack control plane

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Level
Advanced
Time
About 90 minutes
Nodes need
6 vCPU, 5,888 MB
Smallest plan
Lite

The scenario

Kestrel Freight's core is growing into something an ISP would recognise: IS-IS as the IGP, and BGP to Harbour Fibre, on a mixed core of IOS and Junos. Both IPv4 and IPv6 have to run on the same links. You want one control plane design that treats both the same way.

Link or LANIPv4IPv6
R1 to R210.0.12.0/242001:db8:100:12::/64
R1 to SRX110.0.13.0/242001:db8:100:13::/64
R2 to SRX110.0.23.0/242001:db8:100:23::/64
Office LAN10.1.0.0/24, R1 .1, H1 .102001:db8:100:10::/64, R1 ::1, H1 ::10
R2 to CHR1198.51.100.0/30, R2 .1, CHR1 .22001:db8:e:1::/64, R2 ::1, CHR1 ::2
RouterLoopbackIS-IS NET
R110.255.0.1, 2001:db8:100:ffff::149.0001.0000.0000.0001.00
R210.255.0.2, 2001:db8:100:ffff::249.0001.0000.0000.0002.00
SRX110.255.0.3, 2001:db8:100:ffff::349.0001.0000.0000.0003.00
CHR1, AS 64520203.0.113.1, 2001:db8:e000::1none
DeviceRunsHow to log in
R1, R2Cisco 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
H1Alpine Linuxroot, no password.

What you’ll practise

  • Explain how IS-IS carries IPv4 and IPv6, and what multi-topology adds
  • Configure multi-topology IS-IS on IOS and Junos, including ISO addresses
  • Build iBGP over loopbacks with a separate session for each address family
  • Build eBGP to RouterOS for both families, and announce a site aggregate
  • Prove the data path for both families from a host

The tasks

  1. Start the Linux host
  2. IS-IS on IOS
  3. IS-IS on Junos
  4. iBGP over loopbacks, one session per family
  5. eBGP to the provider

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 IS-IS and BGP - the dual-stack control plane5 nodes, 5 links. Every link is listed as text below the diagram.R1R2SRX1CHR1H1Gi0/2eth0Gi0/1ge-0/0/1Gi0/2ether1Gi0/0Gi0/0Gi0/1ge-0/0/0
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 R2 Gi0/0
  • R1 Gi0/1 to SRX1 ge-0/0/0
  • R2 Gi0/1 to SRX1 ge-0/0/1
  • R2 Gi0/2 to CHR1 ether1
  • R1 Gi0/2 to H1 eth0
Nodes in IS-IS and BGP: the dual-stack control plane, 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
R2Cisco 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

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 05 - IS-IS and BGP - the dual-stack control plane 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.