Monitor IP Traffic

This has been around for a while, but I just recently found it and wanted to share. It's a really neat, old world style CLI gui for monitoring IP traffic in an eye-pleasing manner. 
It can be found in yum as iptraf. You install it and run iptraf and the menus are very easy to understand.
IPTraf - An IP Network Monitor
Screenshots: http://iptraf.seul.org/shots.html

It can be found in yum as iptraf. You install it and run iptraf and the menus are very easy to understand.
IPTraf - An IP Network Monitor
Screenshots: http://iptraf.seul.org/shots.html
Comments
i have some other if you like to explore more about linux IP traffic :
TCPDUMP/LIBPCAP public repository
Wireshark: Go deep.
Cacti: The Complete RRDTool-based Graphing Solution
Snort - the de facto standard for intrusion detection/prevention
MRTG - Tobi Oetiker's MRTG - The Multi Router Traffic Grapher
[edit]
http://www.ntop.org/ ---> this one is cool, have that real time graph & IP SrcAddr
[/edit]
even though some of them were transport-to-application level monitoring - but, they should have lower level capabiltity, so - snort included
cheers