DHCP Discovery

Demo
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Warning:
NEVER scan a computer you do not own or have the owner's permission to scan.

DHCP Discovery Tool Description

The DHCP Discovery tool finds DHCP (Dynamic Host Configuration Protocol) servers on your local network segment. It detects legitimate DHCP servers and servers that are not supposed to be on your network (sometimes called rogue DHCP servers). The DHCP fields this tool can decode and display from a server DHCP_OFFER response packet are shown in this table:

DHCP Server IP Address	DHCP Server Hostname	Offered IP Address
Offered Subnet Mask	IP Address Lease Time	Renewal Time
Rebinding Time	Domain Name	DNS IP Address
Router IP Address	NTP Server IP Address

You have control over the option requests shown in bold and you can control the MAC address sent in the DHCP_DISCOVER broadcast packet to DHCP servers.

Windows Vista compatibility: Fully functional as of v10.42.

Screenshot

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