Solution

To locate the problem, enable debugging and execute the display command on the DHCP relay agent to view the debugging information and interface state information.

Verify that:

• The DHCP is enabled on the DHCP server and relay agent.

• The address pool on the same subnet where DHCP clients reside is available on the DHCP server.

• The DHCP server and DHCP relay agent are reachable to each other.

• The relay agent interface connected to DHCP clients is correlated with a correct DHCP server group and the IP addresses of the group members are correct.