What can ntop do?

  • Classify traffic according to the protocol;
  • See traffic as a function of various criteria;
  • View traffic statistics;
  • Store traffic statistics in RRD format;
  • identity identification of users;
  • Without having to send packages, identify the operating system;
  • Display IP traffic information between the various protocols;
  • Identify who talks to whom;
  • Act as collector NetFlow and sFlow flows generated by network equipment such as routers and switches;
Operating System
  • Loopback
  • Ethernet
  • Token Ring
  • Raw IP
  • FDDI
  • Fiber Channel
  • more...
  • Memory Usage: depends on the ntop configuration, the number of hosts, and the TCP active sessions. However it goes from a few MB for small networks up to 100MB for WANs;
  • CPU usage is related to the ntop configuration and traffic conditions. On current server, not exceed 10% of the CPU load;
  • IPv4/IPv6
  • IPX
  • DecNet
  • Apple Talk
  • Netbios
  • OSI
  • DLC
  • ...e molti altri
IP Protocols
  • Fully user configurable
Additional Features
  • Supporto VoIP (SIP, Cisco SCCP and Asterisk IAX)
  • Supporto NetFlow (incluso v5 e v9) e IPFIX
  • Network Flows
  • Analisi di traffico Locale
  • Multithread and MP (MultiProcessor) support on both Unix and Win32
  • Python lightweight API for extending ntop via scripts
  • Support of both NetFlow andsFlowas flow collector. ntop can collect simultaneously from multiple probes
  • Traffic statistics are saved into RRDdatabases for long-run traffic analysis.
  • Internet Domain, AS (Autonomous Systems), VLAN (Virtual LAN) Statistics
  • Network assets discovery and categorization according to their OS and users
  • Protocol decoders for many internet protocols
  • Advanced 'per user' HTTP password protection with encrypted passwords
  • RRDsupport for persistently storing per-host traffic information
  • Passive remote host fingerprint (Courtesy of ettercap)
  • HTTPS (Secure HTTP via OpenSSL)
  • Virtual/multiple network interfaces support
  • Graphical ntop launcher (Win32 only)


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