IntermediatePublished 2026-07-04

IPv6 Global Unicast Addressing

Bundle lab · $29.99

Enable IPv6 forwarding and configure IPv6 global unicast addresses on directly connected links only. No routing protocols or static routes. Verify that each device can reach only its directly connected neighbors using IPv6.

Track

CCNA

Est. time

35 minutes

Difficulty

Intermediate

Topics

CCNA, IPv6, Addressing, Cisco IOS XE, Global Unicast

✓ 3 learners have completed this lab.

Learning objectives

Explain the structure and scope of IPv6 Global Unicast addresses (2000::/3).
Enable IPv6 forwarding globally with ipv6 unicast-routing on Cisco IOS XE routers.
Configure interface IPv6 global unicast addresses with correct /64 prefixes on directly connected links.
Verify operational state and directly connected reachability using show ipv6 interface brief and ping.

Troubleshooting focus

If interfaces show administratively down, ensure no shutdown is applied on every configured interface.
If pings fail, confirm the IPv6 address/prefix on both ends of a link are in the same /64 and typed exactly (watch for :: compression mistakes).
Ensure ipv6 unicast-routing is enabled on both routers; without it, some IPv6 behaviors and forwarding logic are inactive.
Verify the host’s default route points to the correct on-link gateway address and that the gateway interface is up with the correct address.

Topology

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What's included in the package

Work / baseline CML import — lab-work.yaml
Topology diagram — topology.svg
Print-ready topology diagram (PDF) — topology.pdf
Step-by-step learner guide (Markdown — for Obsidian/VS Code) — lab-guide.md
Branded PDF lab guide — open in any viewer (Adobe/Preview) — lab-guide.pdf
Getting-started README — README.md
Verification checklist — verification-checklist.md

How this lab is graded

Build it your way. Where a lab lets you choose a value — a VLAN name, an interface description — grading checks that you configured it, not which name you picked. Names that another line has to reference, like an ACL applied with access-class, are stated in the guide and do have to match.
Addresses, modes and protocol keywords are exact. An IP address, a subnet mask, switchport mode trunk, an encapsulation — these carry the meaning of the lab, so they are graded as written in the guide.
Grading reads your saved configuration. Export the lab from CML after you have configured it, and make sure anything you set is in the running-config — a change that only exists in a terminal session never reaches the grader.
You can submit as many times as you like. Your best score stands, and each attempt tells you which checks passed so you can work the gaps.
Scored something you believe is correct? Use Report an issue on this page — that is exactly how the grading fixes in the changelog got found.

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IPv6 Global Unicast Addressing

Learning objectives

Troubleshooting focus

Topology

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