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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Smurf Amps List
On Sat, 13 Jun 1998, Jared Mauch wrote: > On Sat, Jun 13, 1998 at 07:10:41AM -0400, D'Arcy J.M. Cain wrote: > > Thus spake Jared Mauch > > > The page can be found at > > > http://puck.nether.net/~jared/smurfblocks.html > > > > Why not list the netmask of the netblock as well? > > In most cases you can figure out the netmasks. These blocks > were only checked at the very beginning of their space based on > the bgp announcement as viewed by our network. You can look at > our AS1225 feed at route-views.oregon-ix.net Checking only the beginning of nets for which you receive BGP announcements fails to take into account the vast numbers of single-homed networks which are part of large supernets. i.e. One of FDT's old UUNet IP blocks was a /20 in 205.228.0.0/14. There are only a few dozen announcements for: sh ip ro 205.228.0.0 255.252.0.0 longer ------------------------------------------------------------------ Jon Lewis <[email protected]> | Spammers will be winnuked or Network Administrator | drawn and quartered...whichever Florida Digital Turnpike | is more convenient. ______http://inorganic5.fdt.net/~jlewis/pgp for PGP public key____
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