Switchport security best practices for Cisco IP phones

Hello.

I have some difficulty to understand what the safest method is to ensure a Cisco IP Phone.

Can't get info on how many course connect a switchport and a telephone computer IP Cisco with a daisy chained to him.

The thing I fear more precisely is how to secure against attacks of Double VLAN tagging and COP on this port.

I searched regardless of the possible resource for the answer and you have not found anything useful.

I also have a question regarding port security on a switch: can you set a minimum amount of MAC addresses active and then limit the period of ageing on the MAC addresses on a specific switchport, such that if someone disconnects the phone and sets up a Cisco switch or other device of thugs, then the port should be stopped during the period of ageing.

Let me know, what you would suggest to better secure the hose between the Cisco IP phone and the switch.

Best regards

Casper.

If you see all these as the attack vector for your environment, there are only 802. 1 x that can help you.

Tags: Cisco Security

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