- To: outages-list@eskimo.com
- Subject: Network Outage
- From: Robert Dinse <nanook@eskimo.com>
- Date: Mon, 11 Sep 2000 00:18:00 -0700 (PDT)
- cc: noc@sprint.net
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Network Outage
The network outage from approximately 12 midnight to 12:10 AM was caused
by a denial of service attack that takes advantage of a packet fragment
re-assembly bug in Cisco allowing the packets to get past access lists that
exist on the router of our upstream provider (Sprint) that otherwise would have
protected us from this attack.
This bug in Cisco's code has been known since at least last November but
still remains unfixed, despite opening tickets with Sprint and complaints to
Cisco.