D-Link NetDefend DFL-CP310 User Manual page 268

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Using SmartDefense

In this field...

Enforce IGMP to

multicast addresses

Peer to Peer

SmartDefense can block peer-to-peer traffic, by identifying the proprietary

protocols and preventing the initial connection to the peer-to-peer networks. This

prevents not only downloads, but also search operations.

This category includes the following nodes:

• BitTorrent

Note: SmartDefense can detect peer-to-peer traffic regardless of the TCP port being

used to initiate the session.

According to the IGMP specification, IGMP packets must be sent to

ulticast addresses. Sending IGMP packets to a unicast or broadcast

address might constitute and attack; therefore the NetDefend firewall

y whether to allow or block IG

multicast addresses, by selecting one of the following:

Block. Block IGMP packets tha

addresses. This is the default

None. No action.

ckets that are sent to non-

t are sent to non-multicast

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