AOS CPPM Integration - Configuration Testing

AOS & CPPM INTEGRATION

CONFIGURATION & TESTING

EAP TLS & EAP PEAP

by

Abilash Soundararajan

CONFIDENTIAL © Copyright 2014. Aruba Networks, Inc. All rights reserved

EAP-TLS


Certificate Requirements for EAP-TLS architecture

(EAP tunnel termination on CPPM)

User Certificate

Root CA in Trusted

Root CA list

Root CA Cert

Signing CA Cert

Radius CA Cert

Certificate Requirements for EAP-TLS architecture

(EAP tunnel termination on Controller)

User Certificate

Root CA in Trusted

Root CA list

Server Cert

Trusted CA Cert

Root CA Cert

Signing CA Cert

SETTING UP EAP-TLS

TERMINATION ON CPPM


Steps for EAP-TLS (Termination on CPPM)

• Creating CA & Signing CA on CPPM

•

Configuring Controller

– SSID profile

– Dot1x profile

– Server & Server Group

– AAA profile

– VAP Profile

– Mapping to AP-group

• Configuring Device & Services in CPPM

• Creating CSR, Radius cert and uploading it

• Creating User in CPPM

• Creating Client Certificates

• Checking Access Tracker

•

Troubleshooting from Controller

Creating CA & Signing CA on CPPM


Creating CA & Signing CA on CPPM


Checking CA cert info


Configuring Controller – SSID profile


Configuring Controller – Dot1x profile


Configure server info and map to server group


Mapping Dot1x, AAA & SSID profiles

Mapping Do1x to AAA profile Mapping AAA & SSID to VAP Profile

Add this VAP to the AP-group that needs this SSID.


Add Controller to the devices in CPPM


Creating an Enforcement Policy


Creating Enforcement Policy Rules

• There are different ways of doing this step.

• In this case we are going to check, if the Certificate submitted by client for authentication has in its common name “Company_ABCD”, which is also in our list of Signing CAs.


Creating Service in CPPM to cater to EAP-TLS requests

Adding ESSID name to the list of conditions to be checked to match this Service.


Adding necessary Authentication Methods &

Sources necessary


Mapping the Enforcement Profile configured


Creating CSR for RADIUS server

Note: Need to download 2 files . “CertSignRequest.csr” & “CertPrivKey.pkey”


Creating Radius server cert with corresponding CA


Uploading the Radius server cert to Server Certs


New Radius certificate seen in the Server Certs


Creating User certificates


Checking Certificates created and Exporting Client certificate

Exporting Client Certificate with private key, secured with a Passphrase


Installing the Client certificate on the end device


Creating the user in the Local user database (as CN of the user will be checked in Local DB)


Troubleshooting Radius Service from Controller

• Current service will not help in doing aaa test-server

– As its only meant for EAP-TLS & EAP-PEAP

• Below addition in services can help in doing an MSChapv2 as well

– Disable it post testing for stricter security compliance


Checking logs on CPPM for successful test authentication


Checking logs on Controller for Successful/ failed test authentication

(Master) #show log security 30 | include User,server,fail

Aug 4 10:55:53 :124004: <DBUG> |authmgr| Auth server 'Company-ABC-CPPM' response=0

Aug 4 10:55:53 :124019: <INFO> |authmgr| Test server response: Authentication Successful

Aug 4 11:02:52 :124011: <INFO> |authmgr| Test authenticating user Employee1:****** using server Company-ABC-CPPM


Aug 4 11:02:57 :124019: <INFO> |authmgr| Test server response: Authentication failed





Aug 4 11:06:20 :121041: <DBUG> |authmgr| User Employee1 MAC=00:00:00:00:00:00 not found.



















Download & Install Root CA Certificate to the list of

Trusted CAs in the EAP-TLS client


Server Validation settings in Client


Choosing Client cert for authenticating while connecting & Successful Authentication


Checking Security logs for the EAP-TLS event


Checking logs in Access Tracker (CPPM)


Client Attributes sent and Authentication Sources used


EAP-TLS WITH TERMINATION

ON CONTROLLER


Create Server certificate for Controller – Generate

CSR for controller

Generate certificate for WLAN controller using CSR


Upload the certificate to the controller as Server certificate and also the CA certs


Map the certificates to Dot1x profile and enable

Termination


Configuring CPPM Service


Configuring Authentication Method for Service


Enforcement policy for Service


Ensure that you have User in the DB with the same

Name as CN in the User cert


Controller Side verification – auth-tracebuf


Controller side log verification – Security logs


Checking logs in the Access Tracker (CPPM)


Checking logs in the Access Tracker (CPPM)


EAP-PEAP


Certificate Requirements for EAP-PEAP architecture

(EAP tunnel termination on CPPM)

Username: Employee1

Password:xxxxxx

Root CA in Trusted

Root CA list

Root CA Cert

Signing CA Cert

Radius CA Cert

Certificate Requirements for EAP-PEAP architecture

(EAP tunnel termination on Controller)

Username: Employee1

Password:xxxxxx

Root CA in Trusted

Root CA list

Server Cert

Trusted CA Cert

Root CA Cert

Signing CA Cert

EAP-PEAP WITH

TERMINATION ON CPPM


No change in controller config when compared to

EAP-TLS setup (Termination on CPPM)

Option disabled as termination is disabled

Only change in CPPM Service config when compared to EAP-TLS (Termination on CPPM)


Client config for EAP-PEAP (Auth Method, Server

Certificate & Trusted Root CA)


Checking the steps of EAP-PEAP with termination on CPPM


Checking controller logs for EAP-PEAP authentication


Checking authentication logs at Access Tracker

(CPPM)


Access Tracker showing Outer and Inner EAP tunnel methods


EAP-PEAP WITH TERMINATION ON

CONTROLLER


Only change from EAP-TLS (with termination on controller) in config for EAP-PEAP

Change in CPPM Service config (compared to EAP-

TLS with termination on controller)


Auth-tracebuf from controller showing steps in EAP-

PEAP authentication


Checking security logs in controller for the authentication


Logs at Access Tracker (CPPM)


Logs at Access Tracker (CPPM)


MISCELLANEOUS

TROUBLESHOOTING TIPS


Check the service that is being used in case failed authentication

In the below output for some reason its hitting wrong Service “test123”, while name of our service is “Company_ABCD-EAP-PEAP”

Check if right Authentication methods are configured

In the below output only “Mschap” was configured as the Authentication method, while actually “EAP-PEAP” was required.


Ensure right certificates are used at CPPM,

Controller & Client

Always ensure

• The certificate path is correct and right certificates are positioned in right devices.

• The root CA is trusted in the client device

• Validate the server certificate in client for mutual authentication & mention the exact CN of the Authentication server.


THANK YOU!!!


AOS CPPM Integration - Configuration Testing

AOS & CPPM INTEGRATION

CONFIGURATION & TESTING

EAP TLS & EAP PEAP

EAP-TLS

SETTING UP EAP-TLS

TERMINATION ON CPPM

EAP-TLS WITH TERMINATION

ON CONTROLLER

EAP-PEAP

EAP-PEAP WITH

TERMINATION ON CPPM

EAP-PEAP WITH TERMINATION ON

CONTROLLER

MISCELLANEOUS

TROUBLESHOOTING TIPS

THANK YOU!!!

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AOS CPPM Integration - Configuration Testing