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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: for folks tracking DDOS sources or reading the GRC attack log
On Sat, Jun 23, 2001 at 10:18:10PM -0400, RJ Atkinson wrote: > > 24.0/8 is the "cable block". ARIN normally allocates residential > cable modem subnets out of this space. Nearly all the cable operators > have one slice or another from this block. Nearly all North American > cable modems users have address space in this block. Cable modems > themselves are nearly always numbered in 10.0/8. > > For those who have read the GRC web site, note that 216.216.8.x > appears not to be a cable modem slice in any event. ARIN reports > that this slice has been allocated to @Work, which is the commercial > IP lease-line business unit within [email protected] Presence of a > *.home.net DNS entry does not mean the system is on any cable modem > network. There are no 24.0/8 addresses listed in the log at > http://grc.com/dos/attacklog.htm > so it isn't clear to me that any cable modems were used in that > particular attack. AFAIK 24/8 is exausted. My cable modem is numbered out of 65.4.208.0/19, and the announcement for this block is 65.0.0.0/13. -- Richard A Steenbergen <[email protected]> http://www.e-gerbil.net/ras PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6) |