Aruba Radius setup

I'm trying to setup a radius server to use widows authentication  with aruba wireless devices. I'm unsure on what steps I should be taking to get this up and running.
Sean KelseyAsked:
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Jakob DigranesSenior ConsultantCommented:
explaning this is rather lot, really. But here's some bullet points:

- Decide if you authorize users and stations using domain username and passwords, or certificates.
- domain username and password (ms-chapv2) is the easiest, but then - users can connect "unlimited" devices with their credentials
- certificates (EAP-TLS) - the most secure, but then you need to install and configure a certificate authority and PKI infrastruture - if you haven't got one already
- You should - without any doubt - deploy Protected EAP as EAP authentication method, and then use either mschapv2 og EAP-TLS as inner method.
- With PEAP authentication, EAP-TLS (certificates) or mschapv2 (domain usernames and passwords) are exchanged within a secure channel, to avoid eavesdropping. BTW: With PEAP you need one certificate for NPS no matter what.

- Then you must decide if you want to authenticate computers, users or (best of all) both.
- if you choose both and also choose certificates, then both the computer and user needs a certificate, with usernames that is already taken care of - username and password for computer is automatic (if joined to domain).

Then Aruba
- you configures L2 authentication method of 802.1X - chooes enforce machine authentication (if you decide to authenticate machines aswell)
- You have 4 different roles with 802.1X and Aruba.
1. Logon role, not specifically for 802.1X - but this role is before you're authenticated
2. 802.1X-machine - this is the role when only computer is authenticated, before logon that is
3. 802.1X-User - this is the role when only user is authenticated. Like with a iPad (if this is set up), or if the mac-cache for the machine is expired (this is updated when logging off and on.) typically this happens if user only hibernates PC and then logs on
4. 802.1X - both machine and user is authenticated

For NPS, see here (a bit old, but still valid) http://www.fatofthelan.com/technical/using-windows-2008-for-radius-authentication/

then you also need to configure client settings accordingly

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Sean KelseyAuthor Commented:
Thanks, we finally got past it.  It was an IP mis-match buried deep in the settings.
Sean KelseyAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for Scott Lilly's comment #a40662331

for the following reason:

Good tips, all of which were placed in our KB vault.
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