Continue your lesson
Tie every forwarding decision to interface state, Layer 2 state, addressing, routing, and policy.
Block 1 of 2Compare FHRP virtual IP · Active gateway router
Current · 12 min
Compare FHRP virtual IP · Active gateway router
Optional concept notes
FHRP virtual IP
Provides hosts a shared default-gateway address across multiple routers.
Active gateway router
Currently forwards traffic sent to the first-hop redundancy group.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Block 2 of 2Compare FHRP preemption · FHRP object tracking
17 min
Compare FHRP preemption · FHRP object tracking
Optional concept notes
FHRP preemption
Lets a preferred recovered router retake the active role.
FHRP object tracking
Changes gateway priority when a monitored interface or route fails.
Complete one provider lesson, then answer four related questions. That is enough for today; more practice is optional.
Your lesson stays open here while the provider opens in another tab. Choose one source; the notes above are optional.
Practice the reasoning here
Write or inspect a small Cisco configuration, name the expected show-command evidence, and explain how a frame or packet crosses it.
- State the expected result before changing or testing anything.
- Name the observation, command, log, or report that would confirm it.
- Explain why the closest alternative does not fit the same requirement.
Check the whole objective
This unlocks objective 3.5 for recall. The latest checkpoint needs 70% or higher; a lower result puts the lesson back near the front of your timeline.