Tools
Ad hoc tools
- ping, netstat, traceroute,nslookup, dig, tcpdump, arp
SNMP tools
- Scotty - Tcl Extensions for Network Management Application
http://wwwhome.cs.utwente.nl/~schoenw/scotty/
- MRTG - The multi router traffic grapher
http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html
http://ee-staff.ethz.ch/~oetiker/webtools/rrdtool/
- Service monitoring daemon
http://www.kernel.org/software/mon/
- GETIF (Win 95/98/NT)
http://www.geocities.com/SiliconValley/Hills/8260/