ProbeMethod

Which technique proved a host present. A device may answer one and ignore the others - ARP survives ICMP-blocking firewalls, TCP survives hosts on a routed segment where ARP is not available.

public enum ProbeMethod

1. Fields

1.1. Arp

Layer 2 ARP request; also yields the MAC address. Same-segment only.

Arp

1.2. Icmp

ICMP echo request; also yields round-trip time.

Icmp

1.3. Tcp

TCP connect against a port list; also yields the open-port set.

Tcp