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| Subject: | RE: Localhost packets on WAN |
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| Date: | Thu, 30 Sep 2004 09:03:04 -0700 |
These packets should not be arriving at your perimeter at all.
Anything sourced from a loopback address should be BLOCKED at your perimeter. But if it has your destination address, it will arrive AT your perimeter unless somebody upstream bothers to look at the source address for you. Most ISPs don't, unless you've requested their help fending off a DoS attack.
They are not blowback from misguided Blaster or Nachi countermeasures as someone will undoubtedly suggest.
Please offer some *plausible* alternate explanation. The Blaster blowback precisely explains every detail of traffic like this that I have seen directly or heard reported by others. Do you possess some additional evidence that contradicts it? Do you have a simpler explanation that adequately explains the evidence? David Gillett
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