Comprehensive and Detailed In-Depth

NIOS supports advanced DHCP configuration, including Option Filters, which match client requests

based on DHCP options (e.g., Option 60 for Vendor Class Identifier). If Avaya and Cisco VoIP phones

require the same DHCP option (e.g., Option 66 for TFTP server), the administrator can use separate

Option Filters to distinguish the devices by their unique identifiers (like Vendor Class IDs: "Avaya" vs.

"Cisco") and assign them IPs from the same range with the shared option. This allows both device

types to coexist on the same subnet and range, eliminating the need for segregation (Option B) or

vendor intervention (Option D). Option A is overly restrictive and incorrect. This is a practical DHCP

troubleshooting scenario in the INE course.

Reference: Infoblox NIOS Administrator Guide – DHCP Option Filters; INE Course Content: NIOS DDI

DHCP Troubleshooting.