200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ935

IP Connectivity

The clients and the DHCP server are on different subnets. Which command must be used to forward requests and replies between clients on the 10.10.0.1/24 subnet and the DHCP server at 192.168.10.1?

  • A ip route 192.168.10.1
  • B ip dhcp address 192.168.10.1
  • C ip default-gateway 192.168.10.1
  • D ip helper-address 192.168.10.1
Explanation

When DHCP clients and the DHCP server are separated by a Layer 3 boundary, the router interface on the client subnet must relay the clients' broadcast DHCP messages to the remote server. On Cisco devices, this relay function is configured with ip helper-address 192.168.10.1, which forwards DHCP requests to that server and enables the replies to be returned to the clients.

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