AdvancedPublished 2026-10-20
CCNP Route Control: Tag Routes to Stop Feedback
Today's daily lab
Lab 6 of 6 in CCNP Route Control: Redistribution, Route Maps, PBR & IP SLA · ← Previous
Both boundaries redistribute both ways, so routes can leak back where they came from. Tag every route at the border and block the returns.
Learning objectives
- Tag routes as they cross between OSPF and EIGRP
- Deny routes that would cross back into the domain they came from
- Verify tags at HQ and at the acquired site
Troubleshooting focus
- Everything vanished from one side: a deny sequence needs a permit sequence after it
- The tags look swapped: check which route map each redistribution uses
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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.
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