Netdiscover
netdiscover is an open-source network scanner used to actively detect live hosts on a network. It sends ARP requests to identify active devices and prints the IP address, MAC address, and hostname if available.
network
scanner
arp
discovery
NetDiscover: Network Scanners
Open-source network scanner for detecting live hosts on a network, sending ARP requests, and printing IP address, MAC address, and hostname information.
What is Netdiscover?
netdiscover is an open-source network scanner utility used to actively detect live hosts on a local network. It works by sending ARP requests to devices on the network and analyzing their responses to identify active hosts.
Some key features of netdiscover include:
- Detects active IPv4 hosts on the network by sending ARP requests and analyzing responses
- Prints out the IP address, MAC address, hostname (if available) and vendor details for discovered hosts
- Can perform scans very quickly - scans 255 hosts in less than a second
- Lightweight and easy to use with no dependencies
- Works on Linux and BSD systems
- Can customize scan settings like timeout, output format, interface to use, etc.
netdiscover is useful for network administrators and security professionals to map out devices on a network. It can detect unauthorized or unwanted hosts, identify IP conflicts, and help inventory network assets. The information it provides can also be used as input for further network scanning or vulnerability assessment.
Netdiscover Features
Features
- Active and passive host discovery
- Detects live hosts on a network by sending ARP requests
- Prints IP address, MAC address and hostname of discovered devices
- Can scan entire subnet or custom IP range
- Lightweight and fast host discovery
- Open source and cross-platform
Pricing
- Open Source
Pros
Easy to use with simple command line interface
Fast and efficient host discovery
Identifies active hosts accurately
Works on Linux, Mac and Windows
Free and open source
Cons
Only does basic host discovery, no advanced scanning features
May miss some hosts if ARP requests are blocked by firewall
Requires root/admin privileges to scan network
No official graphical user interface
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