PTraf 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.
You can download it from the following link: https://packetstormsecurity.com/files/download/12739/iptraf-1.4.2.tar.gz
Source: https://packetstormsecurity.com/files/12739/iptraf-1.4.2.tar.gz.html