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Smurf and Fraggle: Sending packets that use the WAN or LAN broadcast address as the source address?

April 26, 2017address broadcast fraggle LAN packets smurf source WAN

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Smurf and Fraggle: Sending packets that use the WAN or LAN broadcast address as the source address?

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Shorewall can be configured to do that using the blacklisting facility. Shorewall versions 2.0.0 and later filter these packets under the nosmurfs interface option in /etc/shorewall/interfaces.