• Launch the lab below to jump into hands-on practice!
    Read the lab objective, configure until everything works as expected, and you'll get your validation flag.

    Totally NSSA lab topology: R1 to R4 across OSPF areas 1, 0 and 2, with external AS on R1 and R4 (192.168.4.0/24)

    Figure 1 - Totally NSSA Topology

    Answer the question below

    Enter the flag you obtained.