The solarwinds free port scanner is one of them.
Network port scanner free.
By default the scanner will scan your network to detect all the ip address.
Portscan stuff is a free portable network scanning tool that identifies all active devices on your network showing all open ports and additional information like hostname mac address http smb ftp iscsi smtp and snmp services.
Scan available ip addresses and their corresponding tcp and udp ports to identify network vulnerabilities.
Free port scanner solarwinds port scanner generate lists of open closed and filtered ports for each scanned ip address with port scanner.
The advanced port scanner is multi thread scanner hence its fast.
For a large network it uses up to 100 threads to speed up the performance.
A free scanner to check opened ports with the services it s running on.
As you can see above you have an option to scan well known ports and port range.
It is free and can be helpful for the following as well.
Advanced port scanner is a free network scanner allowing you to quickly find open ports on network computers and retrieve versions of programs running on the detected ports.
The solarwinds port scanner is one of the free download tools that allows you to scan an ip address range or hostname and generate lists of the open closed and filtered ports on the target network.
To begin scanning you will only configure the scan profile.
The software is easy to use.