iptraf: A TCP/UDP Network Monitoring Utility

iptraf is an ncurses-based IP LAN monitor that generates various network statistics including TCP info, UDP counts, ICMP and OSPF information, Ethernet load info, node stats, IP checksum errors, and others.

Its ncurses-based user interface also saves users from remembering command line switches.

Features

  • An IP traffic monitor that shows information on the IP traffic passing over your network. Includes TCP flag information, packet and byte counts, ICMP details, OSPF packet types.
  • General and detailed interface statistics showing IP, TCP, UDP, ICMP, non-IP and other IP packet counts, IP checksum errors, interface activity, packet size counts.
  • A TCP and UDP service monitor showing counts of incoming and outgoing packets for common TCP and UDP application ports
  • A LAN statistics module that discovers active hosts and shows statistics showing the data activity on them
  • TCP, UDP, and other protocol display filters, allowing you to view only traffic you’re interested in.
  • Logging
  • Supports Ethernet, FDDI, ISDN, SLIP, PPP, and loopback interface types.
  • Utilizes the built-in raw socket interface of the Linux kernel, allowing it to be used over a wide range of supported network cards.
  • Full-screen, menu-driven operation.

Installation

Ubuntu and it’s derivatives:

sudo apt-get install iptraf

Arch Linux and Its derivatives:

sudo pacman -S iptraf-ng

Fedora and its derivatives:

sudo yum install iptraf

Usage

If the iptraf command is issued without any command-line options, the program comes up in interactive mode, with the various facilities accessed through the main menu.
iptraf_1

Menu for easy navigation.

iptraf_2Selecting interfaces to monitor.

iptraf_3

Traffic from interface ppp0

iptraf_4

Enjoy!