Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

802.1x and IP Phone

Is it possible to enable dot1x and voice on the same interface? If so which switches and IOS support this feature ?

Any references to documents ?

Commands that cannot be configured together :-

switch voice vlan xxx

dot1x port-control auto

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: 802.1x and IP Phone

It is possible to enable 802.1X and voice on the same port. If the phone does CDP, it is allowed through, regardless of the 802.1X state of the port with this config. Here's the following switches that support this, with the minimum required releases:

CatOS (6500) - 7.6(1)

IOS (4500) - 12.1(20)EWA

IOS (3750) - 12.2(25)SEA

IOS (3560) - 12.2(25)SEA

IOS (3550) - 12.1(12c)EA1

IOS (2960) - 12.2(25)FX

IOS (2950) - 12.1(12c)EA1

IOS (2940) - 12.1(13)AY

Hope this helps,

1 REPLY
Cisco Employee

Re: 802.1x and IP Phone

It is possible to enable 802.1X and voice on the same port. If the phone does CDP, it is allowed through, regardless of the 802.1X state of the port with this config. Here's the following switches that support this, with the minimum required releases:

CatOS (6500) - 7.6(1)

IOS (4500) - 12.1(20)EWA

IOS (3750) - 12.2(25)SEA

IOS (3560) - 12.2(25)SEA

IOS (3550) - 12.1(12c)EA1

IOS (2960) - 12.2(25)FX

IOS (2950) - 12.1(12c)EA1

IOS (2940) - 12.1(13)AY

Hope this helps,

329
Views
5
Helpful
1
Replies
CreatePlease login to create content