AdvancedPublished 2026-10-31
CCNP DMVPN: Let the Spokes Talk Directly
Today's daily lab
Included with a subscription.
Subscribe to unlockStore-to-store traffic hairpins through the data centre. Convert the stores to multipoint tunnels and change OSPF so they build tunnels to each other on demand.
Learning objectives
- Convert point-to-point spokes to multipoint GRE
- Choose an OSPF network type that keeps the far spoke as next hop
- Make the hub the designated router
Troubleshooting focus
- OSPF stuck after the change: the network types or priorities do not match
- No spoke-to-spoke tunnel: the next hop still points at the hub
Topology
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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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