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What is the function of NAC / Access Control Allowed Domains?

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TitleWhat is the function of NAC / Access Control Allowed Domains?
Question
  • What is the function of NAC Allowed Domains?
Environment
  • NAC
  • Access Control
  • XMC
  • Allowed Domains


 
Answer

Allowed Domains are domains to which the end users can browse while the end-system is being assessed, the end-system is quarantined, or when the end-system is not registering on the network.  The NAC will proxy the HTTP to the allowed domains as long as it is configured with a DNS server.  It will answer these request as if it was the server.

To configure:
In NAC Manager
NAC Manager > Tools > Management and Configuration > NAC Configuration > Portal > Network Settings > click Allowed Web Sites: change > click Allowed Domains tab

In Extreme Management Center
User-added image

User-added image

Note that a ! in front of the website will block access to the website from the nac in proxying these captive portal packets.
This is often beneficial when a certain provider is not working within an existing captive portal or pop up. Adding or removing these may be helpful.
 
Additional notes

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