ZMap 4.0.0 (RC1) introduces the notion of multi-port scanning, which has been a long requested feature. This is a breaking change since ZMap now operates on a metric of (ip,port) target instead of simply IP (e.g., for scan rate).

It also introduces new dependencies (e.g., libjudy) to support multi-port scanning and changes ZMap’s command-line interface.


  • Multi-port scanning support
  • Store link-layer timestamp in icmp_echo_time module (#726)
  • Build support for ARM-based Macs