← An OSPF neighbor won't come up

Lab

A live network, in your browser. Configure each device in the editor or its terminal, watch the topology converge, and run show, ping and traceroute, all computed from your config. Hit Check when it works.

Objectives

  • Not met: Every directly-connected router pair reaches FULL adjacency
  • Met: Each router learns all three loopbacks (1.1.1.1, 2.2.2.2, 3.3.3.3) via OSPF
  • Met: Every loopback is reachable from every router

2 of 3 objectives met.

10.0.12.0/3010.0.13.0/3010.0.23.0/30r1r2r3
Connected to r1. Type ? for help.
R1>
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Objectives update live as you work. Hitting Check commits your proof.

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