nanog mailing list archives
Re: Reporting Little Blue Men
From: "Jay R. Ashworth" <jra () scfn thpl lib fl us>
Date: Thu, 22 Jan 1998 19:09:47 -0500
On Thu, Jan 22, 1998 at 10:21:46AM -0800, Justin W. Newton wrote:
At 11:41 AM 1/22/98 -0500, Eric Osborne wrote:In other words, I can't prevent my customers from sending packets to a broadcast address, esp. on a subnet smaller than /24. You might be able to block outgoing packets for destination x.y.z.255, but if you've got a mask >/24 (/23, etc..), couldn't .255 be a valid host address?Yes, it could be, actually. I tried to use it as WAN pool address once though and it horrendously confused the RAS, as well as several UNIX boxen on the network.
Yes, it could be, but let's remember; isn't the smurf attack the one that _depends_ on a forged _source_ IP address in order to "work"? Cheers, -- jra -- Jay R. Ashworth jra () baylink com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "Two words: Darth Doogie." -- Jason Colby, Tampa Bay, Florida on alt.fan.heinlein +1 813 790 7592
Current thread:
- Re: Reporting Little Blue Men, (continued)
- Re: Reporting Little Blue Men Gary R Wright (Jan 22)
- Re: Reporting Little Blue Men Michael S. Fischer (Jan 22)
- Re: Reporting Little Blue Men Steve Sobol (Jan 23)
- Re: Reporting Little Blue Men Dave Rand (Jan 21)
- RE: Reporting Little Blue Men Dave Van Allen (Jan 21)
- Re: Reporting Little Blue Men Eric Osborne (Jan 21)
- Re: Reporting Little Blue Men Justin W. Newton (Jan 22)
- Re: Reporting Little Blue Men Paul Ferguson (Jan 22)
- Re: Reporting Little Blue Men Eric Osborne (Jan 22)
- Re: Reporting Little Blue Men Justin W. Newton (Jan 22)
- Message not available
- Re: Reporting Little Blue Men Jay R. Ashworth (Jan 22)
- Re: Reporting Little Blue Men Paul Ferguson (Jan 22)
- Re: Reporting Little Blue Men Karl Denninger (Jan 23)
- Re: Reporting Little Blue Men Justin W. Newton (Jan 23)
- Re: Reporting Little Blue Men Randy Bush (Jan 23)
- Re: Reporting Little Blue Men Justin W. Newton (Jan 23)
- Re: Reporting Little Blue Men Eric Osborne (Jan 21)
- Re: Reporting Little Blue Men Dalvenjah FoxFire (Jan 23)
- Re: Reporting Little Blue Men Jay R. Ashworth (Jan 23)