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SEC0414 – Firepower 7.0 AnyConnect VPN Start Before Logon and Management VPN Tunnel (Part 2)


SEC0414 – Firepower 7.0 AnyConnect VPN Start Before Logon and Management VPN Tunnel (Part 2)

SBL , mgmt tunnel

Mgmt tunnel is the VPN that stays connected even if the user has disconnected
Not only does it launch before windows logon (on the new user logon screen)
but Mgmt VPN disconnects as user VPN connects or TND is detected or machine is on trusted internal network

This is so computer can receive software updates even if user VPN is not running

Mgmt vpn tunnel is completely different from user VPN
it runs in the background and user is completely unaware of it

here we meed machine certificate as machine needs to login

for this we need to create new client profile dedicated for mgmt tunnel

for this we will duplicate the existing anyconnect profile

Make sure start before logon is unchecked here

We will tell it to use machine cert

Disable auto update and leave that to user’s anyconnect profile
as we just want to bring up the tunnel

Windows VPN establishment and Windows Logon Enforcement

Part 2 preferences, we will leave most of it as it is

We will name the Group URL here , you can also do that on anyconnect profile and not just connection profile

Upload the XML to FMC but as type “Anyconnect Management VPN Profile”

Add standard ACL to define split tunnel for this Mgmt tunnel

We are adding a new group policy for this mgmt tunnel for it to be used in new connection profile for this mgmt tunnel (which we will define later)

We will make this group policy similar in terms of connection parameters to previous group policy

We will edit the Employee group policy also for management profile so they download the profile as they connect
This is so the profile already exists for mgmt tunnel

We will now configure a new connection profile

We do not need to configure Authorization and accounting for this mgmt tunnel as we just need it to be up after authentication

We had a certificate map configured to say that if certificate is presented then select this connection profile
Because it was a user cert we now need to enable first option for machine cert to work
Using group URL will use group policy and we have configured that group policy to do certificate authentication

mmc

user cert

machine cert

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