Cisco DoS Prevention


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I've recently heard of a method of attacking Cisco routers based on the idea that they will sacrifice admin security in favour of continuing to correctly route when they are bombarded with packets.

I have tried to recreate the problem on a Cisco 2600 series router in a test environment but cannot. (This is a good thing!).

Two questions:

  1. Was this 'exploit' ever real or just an urban security legend?
  2. If it did exist how did Cisco fix the problem?


Reply to
Martin Minnock

Hi Martin,

That sounds like a complete urban myth to me, I have never heard of such a thing. If it ever was an issue you can bet Cisco would have had that one stopped years ago.

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