About Arne Bier

Arne Bier · 07-22-2026

Hello, I have a C9300-24P running IOS-XE 17.18.03 that passed the Meraki compatibility check, yet the registration is failing, because I am managing the Catalysts via the dedicated Management Interface (Gig0/0)  How can such a feature not support th...

Arne Bier · 07-09-2026

Hi, I want to pick apart the Catalyst IOS-XE version with the split() function. I got some examples from this Keith B github but when I apply it to my own Cat Center template, I get no results The IOS-XE version is 17.15.4d But when I run the simul...

Arne Bier · 06-17-2026

I recently noticed a warning banner in ISE Policy Set but I have read all the bug IDs and Release Notes - does anyone have a worked example in ISE Policy Set to illustrate what this means ? I don't which attributes can evaluate to null??? The langua...

Arne Bier · 04-07-2026

The Catalyst Center restricted shell (maglev) doesn't allow the most basic operation to clear out the SSH known_hosts file with standard unix tools like ssh-keygen. In addition, as maglev user, the ~/.ssh/known_hosts file is not viewable or editable...

Arne Bier · 03-01-2026

Hi SNS users, Have any of you run the UCS CIMC Power Characterization when first configuring ISE SNS appliances CIMC? Is this something that should be done by the end customer, or does Cisco do this in factory prior to shipping the appliance? Below i...

Arne Bier · 07-23-2026

Thanks - I am slowly coming to the conclusion that to make things work in Meraki world, you're constrained to a limited, but defined way that Cisco allows you to do things. "Meraki way, or no way". The same thing happened with Cat Center in the early...

Arne Bier · 07-23-2026

I don't have experience with JAMF, but I know that Apple has made it increasingly harder over the years to make EAP-TLS work on iOS devices. The link provided by @PSM is very useful. I would assume JAMF cert complies with all that. However, the cert...

Arne Bier · 07-22-2026

@mstrz - in which component are you removing the apostrophe? I didn't think you could edit the certificate itself before uploading it?I find it weird that you can manually upload the cert containing the apostrophe into ISE, but the same cert can't b...

Arne Bier · 07-22-2026

Hello, Axis cameras are very easy to integrate into a NAC environment. I know this wasn't your question, but why are you using MAB for a security camera that ships with 802.1X EAP-TLS enabled from factory? If you haven't consciously disabled 802.1X, ...

Arne Bier · 07-22-2026

I'm not a big fan of opening Word documents off the internet - perhaps in future just paste the images into these chats - you can copy paste them straight in. The switch config looks alright. The ISE AuthZ Rule below is wrong - because with PEAP you...

Member Since	‎02-23-2017 06:57 PM
Date Last Visited	‎07-23-2026 01:38 PM
Posts	4,189
Total Helpful Votes Received	6000

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Unable to register Catalyst to Meraki - DNS fails due to VRF

Catalyst Center jinja2 split not working as expected

Known behavioral change in policy evaluation for null data - CSCwo1268

Unable to edit Catalyst Center known_hosts file using ssh-keygen

SNS-38x5 Power Capping in the UCS CIMC

Re: Unable to register Catalyst to Meraki - DNS fails due to VRF

Re: MacOS EAP-TLS Authentication Fails with Client Rejected ISE Local

Re: ISE OpenAPI Trusted Certificate upload fails due to malicious cont

Re: Should Periodic Reauthentication Be Disabled for MAB Camera Ports

Re: cannot see EAPOL frames on the switch for wired 802.1x - open mode