Google Workspace Integration

Mist Access Assurance is able to natively integrate into Google Workspace IdP leveraging secure LDAPS connector for the following use-cases:

  1. User Credential Authentication (via EAP-TTLS/PAP) – validate user credentials (username/password) against Google IdP.
  2. User account and Group attribute lookup – obtain information about user account validity and user group memberships for both EAP-TLS and EAP-TTLS authentication methods.

Google Workspace Configuration

Navigate to your Google Workspace portal at admin.google.com

Create LDAP Client

Go to Apps > LDAP and click on Add Client:

Configure Access Permissions for the LDAP Client

First setting (verify user credentials) will allow user credential authentication via EAP-TTLS/PAP, second setting will allow us to read basic user information (read user information).

Now scroll down and enable Read group information setting, then click Add LDAP Client:

Download LDAPS Client Certificate

On the next screen download Google certificate and click Continue.

Generate LDAP Bind Credentials

On the next screen expand Authentication section and then click on Generate New Credentials:

Copy and save generated Username and Password, we will need them for the LDAPS Client configuration on the Mist cloud.

Enable LDAP Client Service

Now go back to the previous screen and click on Service Status

Turn the service on, note sometimes it takes some time for the changes to apply on the Google side.

Mist Dashboard Configuration

Generate an Identity Provider

To enable Google Workspace as an IdP for Access Assurance service navigate to Organization > Access > Identity Providers, then click Add IDP.

Configure IdP Settings to Integrate with Google Workspace

Now configure LDAPS connector to integrate with Google Workspace LDAP endpoint.

IDP type: LDAPS

LDAP Type: Custom

Group Filter: memberOf

Member Filter: memberOf

User Filter: (mail=%s)

Server Hosts: ldap.google.com

Domain Names: Your Google Workspace domain name, e.g. acme.com

Bind DN: Use the Username provided by Google in previous step

Bind Password: Provide password for the above Username.

Base DN: Configure your base dn matching your Google workspace domain. For example, if your domain is acme.com, then your base DN is dc=acme,dc=com

Under CA Certificate section, click on Add Certificate and paste the following two certificates:

-----BEGIN CERTIFICATE-----
MIIFljCCA36gAwIBAgINAgO8U1lrNMcY9QFQZjANBgkqhkiG9w0BAQsFADBHMQsw
CQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExMQzEU
MBIGA1UEAxMLR1RTIFJvb3QgUjEwHhcNMjAwODEzMDAwMDQyWhcNMjcwOTMwMDAw
MDQyWjBGMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZp
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tmsTDIwZKxeWmLnwi/agJ7u2441Rj72ux5uxiZ0CAwEAAaOCAYAwggF8MA4GA1Ud
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AQH/BAgwBgEB/wIBADAdBgNVHQ4EFgQUinR/r4XN7pXNPZzQ4kYU83E1HScwHwYD
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CCsGAQUFBzABhhpodHRwOi8vb2NzcC5wa2kuZ29vZy9ndHNyMTAwBggrBgEFBQcw
AoYkaHR0cDovL3BraS5nb29nL3JlcG8vY2VydHMvZ3RzcjEuZGVyMDQGA1UdHwQt
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A1UdIARQME4wOAYKKwYBBAHWeQIFAzAqMCgGCCsGAQUFBwIBFhxodHRwczovL3Br
aS5nb29nL3JlcG9zaXRvcnkvMAgGBmeBDAECATAIBgZngQwBAgIwDQYJKoZIhvcN
AQELBQADggIBAIl9rCBcDDy+mqhXlRu0rvqrpXJxtDaV/d9AEQNMwkYUuxQkq/BQ
cSLbrcRuf8/xam/IgxvYzolfh2yHuKkMo5uhYpSTld9brmYZCwKWnvy15xBpPnrL
RklfRuFBsdeYTWU0AIAaP0+fbH9JAIFTQaSSIYKCGvGjRFsqUBITTcFTNvNCCK9U
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PxWhu//2m+OBmgEGcYk1KCTd4b3rGS3hSMs9WYNRtHTGnXzGsYZbr8w0xNPM1IER
lQCh9BIiAfq0g3GvjLeMcySsN1PCAJA/Ef5c7TaUEDu9Ka7ixzpiO2xj2YC/WXGs
Yye5TBeg2vZzFb8q3o/zpWwygTMD0IZRcZk0upONXbVRWPeyk+gB9lm+cZv9TSjO
z23HFtz30dZGm6fKa+l3D/2gthsjgx0QGtkJAITgRNOidSOzNIb2ILCkXhAd4FJG
AJ2xDx8hcFH1mt0G/FX0Kw4zd8NLQsLxdxP8c4CU6x+7Nz/OAipmsHMdMqUybDKw
juDEI/9bfU1lcKwrmz3O2+BtjjKAvpafkmO8l7tdufThcV4q5O8DIrGKZTqPwJNl
1IXNDw9bg1kWRxYtnCQ6yICmJhSFm/Y3m6xv+cXDBlHz4n/FsRC6UfTd
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFYjCCBEqgAwIBAgIQd70NbNs2+RrqIQ/E8FjTDTANBgkqhkiG9w0BAQsFADBX
MQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEQMA4GA1UE
CxMHUm9vdCBDQTEbMBkGA1UEAxMSR2xvYmFsU2lnbiBSb290IENBMB4XDTIwMDYx
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ladAPKH9gvl9MgaCcfb2jH/76Nu8ai6Xl6OMS/kr9rH5zoQdsfnFl97vufKj6bwS
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WprKASOshIArAoyZl+tJaox118fessmXn1hIVw41oeQa1v1vg4Fv74zPl6/AhSrw
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d0lIKO2d1xozclOzgjXPYovJJIultzkMu34qQb9Sz/yilrbCgj8=
-----END CERTIFICATE-----

Under Client Certificate, add a client certificate you downloaded from Google. Place file ending with .key under Private Key, and file ending with .crt under Signed Certificate:

Notes on using EAP-TTLS for password based authentication

EAP-TTLS authentication leverages LDAPS OAuth flow with Azure AD, which means using legacy authentication using Username + Password without MFA. Few considerations regarding using this method:

  • Client devices need to be configured with the right WiFi profile, either from GPO or MDM – simply providing username/password at the login prompt will not work for some operating systems.
  • Users need to use Google Email ID (username@domain) username format, not just username.
  • Clients need to trust server certificate, please refer to the following doc for more details.

Validation

Once clients will attempt authentication, you would see IDP Authentication Success (in case of EAP-TTLS authentication using username/password), and IDP Group Lookup Success events that fetch user group membership information. You may leverage IDP Roles from Google Workspace in your Auth Policy rules to perform network segmentation based on user roles: