IP  www.myip.dk  www.heise.de/netze/tools/ip/  www.subnet-calculator.com/

DNS  www.ip-plus.net (dig)

ping/Traceroute  www.traceroute.org

Looking Glass/BGP  route-server.ip-plus.net >(telnet)  ner-routes.bbnplanet.net (telnet)  route-views.oregon-ix.net (telnet)

Whois  www.heise.de/netze/tools/whois-abfrage  www.ip-plus.net/tools/whois_set.en.html  www.whois.de/de/

Provider etc.  www.ip-plus.net  www.init7.ch  www.swissix.ch

(c) 2008 by packetlevel.ch / last update: 08.03.2008