Re: 0.0.0.0 Probes

From: Miles Stevenson (miles_at_mstevenson.org)
Date: 10/22/04

  • Next message: Mailing Lists: "Secure Port Testing" 
    To: security-basics@securityfocus.com, gillettdavid@fhda.edu
Date: Fri, 22 Oct 2004 14:02:05 -0400

    David,

    <snip>
    > These packets are not *to* 0.0.0.0; they just claim to be
    > *from* there. Unless a router is specifically configured to
    > check the source address for validity, it won't care. (The
    > RFC passage you quote prevents attempts to *reply* to such
    > packets from saturating the whole Internet.)
    </snip>

    Agreed. Thank you for the correction.

    >"..SHOULD NOT originate datagrams addressed to 0.0.0.0".

    Use of the words "originate" and "to" in the same phrase to represent traffic
    flow seems, at first glance, to be in conflict with each other, and is likely
    the source of my misinterpretation.

    Another example of the importance of semantics when then intention is to
    communicate accurately. 

    -- 
Miles Stevenson
miles@mstevenson.org
PGP FP: 035F 7D40 44A9 28FA 7453 BDF4 329F 889D 767D 2F63

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