Question

A branch router is configured as an IOS DHCP server for VLAN 20 (10.20.0.0/24). Users report that obtaining an address takes noticeably long, and 'show ip dhcp conflict' lists several addresses in the pool. The network team confirms no rogue DHCP server exists, but several static hosts were manually assigned addresses inside the DHCP pool range without exclusions. Which action will BOTH stop new conflicts from being recorded and eliminate the lease-assignment delay caused by the server's conflict-detection behavior?

Accepted Answer

Exclude the statically assigned addresses with 'ip dhcp excluded-address' and clear existing conflicts with 'clear ip dhcp conflict *'

Answer

Disable ARP-based conflict detection by removing 'ip dhcp ping packets 0' so the server stops probing addresses

Answer

Increase the lease time in the pool so clients renew less frequently and the server performs fewer conflict checks

Answer

Configure 'ip dhcp conflict resolution' to automatically reassign conflicted addresses to new clients