If a CDP-enabled interface on a neighbor has no IP address, what will CDP report for that neighbor?

CDP (Cisco Discovery Protocol) is a Layer 2 protocol that discovers directly connected Cisco devices. If a CDP-enabled interface on a neighbor device lacks an IP address, CDP will attempt to report an IP address from another active interface on that same neighbor device. This ensures that some form of IP reachability information is provided if available, even if not directly from the connected interface. CDP will continue to operate normally and provide other device information (e.g., device ID, platform, capabilities) regardless of the IP address status of the specific interface.