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How To - Block Boom Beach / Clash of Clans / Hay Day
Posted by Chris Cooper, Last modified by Jim Giseburt on 21 July 2017 04:01 PM

Boom BeachClash of Clans, and Hay Day are popular mobile games by maker Supercell


Blocking Supercell Games

In Cipafilter versions 8.4 and above, Supercell games are already included in the "Games" blacklist. In older versions of firmware, you will need to add the following domain to the appropriate blacklists:


As of 2014/09/04, Supercell has made changes that require a firewall rule to effectively block the games.

From within your firewall, create a rule to drop outbound TCP traffic on port 9339. See example below for rule creation on Cipafilter 9.2 and beyond.  Replace the '' subnet entry with your own internal subnet.

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For more information about creating firewall rules on a Cipafilter, please see our Firewall manual page.

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