Issued to
mohamedsalama-1-2006
@mohamedsalama-1-2006
Challenge
The OSPF neighbors won't come up
troubleshootingmedium
Two routers share a link but never become OSPF neighbors, so neither learns the other's routes. Find why the adjacency is stuck and fix it.
What was proven3/3 checks passed
- Passed: The OSPF adjacency between R1 and R2 forms on the shared link
- Passed: R1 learns R2's loopback (2.2.2.2/32) via OSPF
- Passed: R2 learns R1's loopback (1.1.1.1/32) via OSPF
How this was verified
This proof was graded automatically on October 28, 2026 against the challenge's validation suite, the same checks that run live in the lab, and every check passed. NetProof issues verified proofs of work for network and infrastructure engineers: each one is earned by solving a real challenge in a live lab, not by answering a quiz. See how NetProof works →