Continue your lesson
Tie every forwarding decision to interface state, Layer 2 state, addressing, routing, and policy.
Block 1 of 1Compare DHCP client · IP helper address · DHCP excluded address · DHCP lease
Current · 18 min
Compare DHCP client · IP helper address · DHCP excluded address · DHCP lease
Concept notes
DHCP client
Requests and leases IP configuration from a DHCP service.
IP helper address
Configures a Cisco IOS interface command to relay DHCP and other selected UDP broadcasts to a remote server.
DHCP excluded address
Keeps selected addresses from being offered by a local pool.
DHCP lease
Grants address configuration to a client for a limited time.
Review the concept notes, then answer four related questions. That is enough for today; more practice is 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 4.6 for recall. The latest checkpoint needs 70% or higher; a lower result puts the lesson back near the front of your timeline.