Zmap Scan. If your network is not able to support sending packets this quickly, your local network may become congested, causing connectivity problems for you and those around you. Zmap was built to scan the Internet. Perform large-scale studies of the hosts and services that compose the public Internet. ZMap is a fast single-packet network scanner optimized for Internet-wide network surveys. Another related Internet scan project but unrelated to the Zmap tool is the well known shodan.io. Zmap Scan
Zmap Scan ZMap was designed for information security research and can be used for both white hat and black hat purposes. Zmap uses many UDP probes (payload packets), which can help identifying open UDP ports. Most of you are aware of the power of nmap and nmap scripts for reconnaissance on a target and target networks.
Zmap is a port scanner used for large-scale scanning and is considered one of the fastest scanning tools.
By default, ZMap will employ a simple blacklist file having reserved and unallocated addresses and this file can be found in /etc/ZMap/blacklist.conf.
Zmap Scan ZMap is a fast single-packet network scanner optimized for Internet-wide network surveys. Use this if you want to scan addresses in the same order for multiple ZMap runs.--shards=N. The latter allows to scan UDP and TCP ports using zmap, and it contains a parser to parse the results in a json format in order to save them.