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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Actions to quiet the Smurf amplifiers?
On Wed, Oct 21, 1998 at 12:40:14PM -0700, Erik E. Fair wrote: > I also don't think it's such a hot idea to be universally filtering > "n.n.n.255" without explicit prior knowledge of the netmask of the network > involved. Apple Computer, for example, used a 14 bit subnet mask on net 17 > and we used every address in the 10-bit host space that was available to > use with that scheme, including the three where the last octet is 255. Make > certain that all your customers know that you're doing this - otherwise > they may be puzzling over why connectivity works from every address in > their net number, except for one or two... I was one of the participants in the last war on this topic here, and I feel the need to point out that I read him as saying he _ingress_ filtered 255, not egress filtered it. He can be expected to know if his own internal network has any non broadcast .255's, I'd think. (He wasn't a reseller, was he? :-}) Cheers, -- jra -- Jay R. Ashworth [email protected] Member of the Technical Staff Buy copies of The New Hackers Dictionary. The Suncoast Freenet Give them to all your friends. Tampa Bay, Florida http://www.ccil.org/jargon/ +1 813 790 7592
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