Clients are on 10.10.0.0/24 and the DHCP server is at 192.168.10.1 on a different subnet. Which command forwards DHCP requests between them?
Choose an answer
Tap an option to check your answer.
Correct answer: ip helper-address 192.168.10.1.
Why this is the answer
The correct command is ip helper-address 192.168.10.1. This command is configured on the router interface connected to the client's subnet (10.10.0.0/24). DHCP uses broadcast messages, which do not cross router boundaries. The ip helper-address command tells the router to convert incoming DHCP broadcast requests into unicast messages and forward them to the specified DHCP server at 192.168.10.1. ip route 192.168.10.1 is incorrect because it's used for static routing, not for forwarding DHCP requests. ip dhcp address 192.168.10.1 is not a valid Cisco IOS command for this purpose. ip default-gateway 192.168.10.1 is used on end devices or Layer 3 switches to specify their default gateway, not to forward DHCP requests from clients to a server.
Pass your exam — without the endless answer hunt
Get every verified question and explanation for this exam in one place, and save hours of prep. 1,000+ certifications · 20+ languages · free to start.
Pass your exam faster → No card needed