Palo Alto Networks Knowledgebase: URL Filtering Order

URL Filtering Order

12492
Created On 02/07/19 23:47 PM - Last Updated 02/07/19 23:47 PM
URL Filtering
Resolution

Issue

What happens when a  URL matches multiple patterns (multiple custom URL filtering categories and allow/block-list) within a URL filtering profile?

Resolution

When that happens, the category chosen is the one that has the most severe action defined below (block being most severe and allow least severe).

  1. block
  2. override
  3. continue
  4. alert
  5. allow

For example, if *.yahoo.com exists in MyAlertList and MyBlockList simultaneously) within the same URL filtering profile and www.yahoo.comis the URL, the action will be “block” and the category name will be “MyBlockList”.  This is similar to the original behavior between “allow-list” and “block-list” in that the block-list will be checked BEFORE the allow-list if a URL matches both “allow-list” and “block-list”.

The priority for URL filtering is:

  1. block list
  2. allow list
  3. custom categories
  4. cached
  5. pre-defined categories

owner:  ukhapre



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