View source for Layer 1 and 2 DoS Attacks

Denial of service at level 1 or 2 can take two forms.

The first is a physical denial of service - this would be something like radio jamming or snipped network cables. This is a physical means of preventing a sheep from connecting to a network or to other resources.

The second is at the router level, and consists of tampering with the CAM table, which maps MAC addresses to IP addresses. (Note: technically, this is really a level 3 attack, but since I can't think of any purely Level 2 DoS attacks... there you go.)

CAM Overflow/MAC Flood: [[DoS/Mac Flood]]
* This type of attack is more useful in man-in-the-middle attacks, as a full CAM table does not break the router, it simply causes the router to broadcast traffic to all ports and all parties on the network.
* It can still be a useful mitigation technique, however. For routers on small networks that are logging MAC addresses of clients, one new mac address may


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