Wired Intelligent Edge (Campus Switching and Routing)

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New Contributor

PCs not MAC authenticating on PXE boot but will once in Windows

Random PCs on the network are not MAC Authenticating on PXE boot , just want to rule out the switches 2930m . Mac-auth is set on the switch stacks and there is an unauth-vlan for unknown devices. Making use of  NPS server, machines are shutdown each night and on boot the next day fail to authenticate - no requests on the NPS and remain on the unauth-vlan, however once booted into Windows and the network cable is unplugged and then put back in you can see the request straight away  and the machine is then placed on the correct vlan. The next day a few random machines will do the same thing event though they successfully authed the previous day. 

 

Any help would be appreciated.


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MVP Expert

Re: PCs not MAC authenticating on PXE boot but will once in Windows

Try configuring the following commands on one of the ports you are experiencing the issue and see if it helps:
aaa port-access mac-based logoff-period 9999999
aaa port-access controlled-direction in



Thank you

Victor Fabian

Pardon typos sent from Mobile

Thank you

Victor Fabian
Lead Mobility Architect @WEI
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA

View solution in original post


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Super Contributor II

Re: PCs not MAC authenticating on PXE boot but will once in Windows

Is it always the same machines? If so have you tried updating the BIOS on one of them?

 

 

Dustin Burns
Senior Mobility and Access Engineer @WEI
ACMX #509 | ACCX #1272 | ACSP | ACDA | ACEP | CCNP | CCDP | CCNA Wireless

If my post address your queries, give kudos and accept as solution!
Highlighted
MVP Expert

Re: PCs not MAC authenticating on PXE boot but will once in Windows

Try configuring the following commands on one of the ports you are experiencing the issue and see if it helps:
aaa port-access mac-based logoff-period 9999999
aaa port-access controlled-direction in



Thank you

Victor Fabian

Pardon typos sent from Mobile

Thank you

Victor Fabian
Lead Mobility Architect @WEI
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA

View solution in original post

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New Contributor

Re: PCs not MAC authenticating on PXE boot but will once in Windows

Thanks Dustin will give that a try today.

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New Contributor

Re: PCs not MAC authenticating on PXE boot but will once in Windows

Thanks Victor , already have those lines in the configs.

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