We found that only 1 factor authentication is required when connecting to the VPN using OpenConnect client with a Global Protect plugin, it appears that it bypasses the portal authentication and only requires the gateway authentication. We have X-Auth disabled, and cannot restrict connections by Linux OS.
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Sorry @Farzana unable to assist but just curious why you would need both rad and AD auth. Does your rad auth not include username, pin and passcode, ( something you are,have and know) if so then perhaps just using rad for gateway would suffice.
i mainly ask as the AD extra auth may do something further down the line that I’m not aware of.
These are some general guidelines that may help:
- 3rd party IPSec clients are expected to connect to gateway directly using standard IKE/IPSec with xauth
- 3rd party IPSec clients do not have the notion know of what the "Portal" is, as this is something specific to Palo Alto Networks and used by our own GP client
- when GP clients are communicating with GP Portal/Gateway, they are using SSL to exchange relevant information and authenticate; end user data traffic is exchanged either via IPSec tunnel or SSL tunnel (depending on gateway configuration)
- 3rd party client can authenticate using:
(a) Group username/password for IKE phase 1, and auth profile (usually LDAP or RADIUS username/password) in xauth (sometimes called IKE phase 1.5) phase
(b) Using certificate authentication in IKE phase 1 (to use cert auth in phase one, group username/password should be left blank in configurarion), and again auth profile in xauth phase
- 3rd party clients we officially support are named here: https://www.paloaltonetworks.com/documentation/global/compatibility-matrix/globalprotect/what-x-auth... Openconnect is not listed.
- 2FA usually means that we are using 2 different factors to access a signle entity; not using one factor for Portal, and one factor for the gateway
- Portal connection is not always mandatory even when using regular GP client, as we can use "cached" configuration when portal is not available, etc. Gateway is usually something we need to protect better; Portal is serving client configuration, and gateway is the one providing access to internal network resources.
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