Good places to start are: IANA, INTERNET PROTOCOL V4 ADDRESS SPACE: http://www.iana.org/assignments/ipv4-address-space
Internet Domain Survey: http://www.isc.org/ds/ Telcordia's Netsizer, which includes breakout by domains: http://www.netsizer.com/ BGP Routing table statistics: http://www.apnic.net/stats/bgp/ I am not aware of any publication listing the ratio of networking equipment to hosts. You will have to conduct some statistical sampling, e.g. get a few friendly domains administrators to tell you their ratios and extrapolate. I do not advise that you try the hacker's path, i.e. pick address at random and use hackers' tools to remotely sense the type of the equipment; it is bad practice, and your results would be tainted by statistical errors due to firewall practices. -- Christian Huitema > -----Original Message----- > From: Jian Bo Huang [mailto:[EMAIL PROTECTED]] > Sent: Friday, February 15, 2002 8:03 AM > To: ietf > Subject: Any idea the ratio of end user workstations to network equipments > Importance: High > > Dear Sirs, > > For my project needs, I want know some statistic data on the usage of IP > address. That means: > > 1) How many addresses are occupied and how many are unassigned? > 2) How many addresses are used for servers, routers and other network > equipments, in contrast with the user end PCs or workstations? That is > the ratio of end user workstations to network equipments. > > I tried to find, but failed on no idea! Have you any suggestion? > > Thank you! > > Truly yours, > Jian Bo Huang > > MSc Student > Department of Electronic Engineering, > University of Surrey > Guildford, Surrey > GU2 7XH, UK > Email: [EMAIL PROTECTED] > Or [EMAIL PROTECTED] > Phone: +44-870-2820955
