An administrator has configured a DHCPv4 relay router and issued these commands: The clients are not receiving IP parameters from the DHCPv4 server. What is a possible cause?

Question:
An administrator has configured a DHCPv4 relay router and issued these commands:

Router(config)# interface g0/0 
Router(config-if)# ip address 10.0.1.1 255.255.255.0 
Router(config-if)# no shutdown 
Router(config-if)# exit 
Router(config)# ip dhcp pool RELAY 
Router(dhcp-config)# end

The clients are not receiving IP parameters from the DHCPv4 server. What is a possible cause?

• The IP address is incorrect for the subnet mask that is used.
• The pool cannot be named ‘RELAY’.
• The ip helper-address command is missing.
• The router is configured as a DHCPv4 client.

Explanation: This router should be configured with the ip helper-address command, followed with the IP address of the DHCPv4 server, because the router is meant to be used as a relay agent. The ip dhcp pool RELAY command just names the DHCPv4 pool, and it does not enable the relay function.

Exam with this question: CCNA 2 (v5.0.3 + v6.0) Chapter 8 Exam Answers