IPtraf-ng

IPtraf-ng is a fork of the original iptraf-3.0.0. IPtraf-ng is a console-based network monitoring utility. It gathers data such as TCP connection packet and byte counts, interface statistics and activity indicators, TCP/UDP traffic breakdowns, and LAN station packet and byte counts. Features of IPtraf-ng include an IP traffic monitor that displays TCP flag information, packet and byte counts, ICMP details, OSPF packet types, and oversized IP packet warnings; interface statistics showing IP, TCP, UDP, ICMP, non-IP, and other IP packet counts, IP checksum errors, interface activity, and packet size counts; a TCP and UDP service monitor that displays incoming and outgoing packet counts for common TCP and UDP application ports; a LAN statistics module that detects active hosts and shows statistics about their activity; TCP, UDP, and other protocol display filters allowing you to view only the traffic you want; logging; support for Ethernet, FDDI, ISDN, SLIP, PPP, and loopback interfaces; and utilization of the raw socket interface built into the Linux kernel, enabling its use with a wide range of supported network cards.

Iptraf-ng is a console-based network monitoring tool designed to collect and analyze network traffic data, aiding users in understanding network activity and performance.