VoiP Hopper/Man in middle attack

Unanswered Question
Mar 10th, 2010

Any idea on how to protect against

Voip Hopper to discover VLAN ID info on the

voip phone?

I have this problem too.
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David Hailey Wed, 03/10/2010 - 17:35

1. Enable Port Security or MAC Address Filtering

2. Enable 802.1x

If you can't do something at Layer 2, your layer 3 options would be along the lines of implementing proper firewall placement or network segmentation (i.e., setting up a Voice DMZ).

Hailey

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