LAB — Troubleshoot OSPF Authentication

  • No steps this time.
    Read the ticket, find what's broken, fix it. The flag appears once everything works.

    ospf authentication area0

    Ticket: since last night's change window, PC1 can't reach SRV1.
    The design: MD5 area-wide on R1–R2, HMAC-SHA-512 on R2–R3.

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