Since filtering needs to be done as close to the source as possible by routers or gateways knowing the valid address ranges of incoming packets, an _______ is best placed to ensure that valid source addresses are used in all packets from its customers.

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The Answer of Since filtering needs to be done as close to the source as possible by routers or gateways knowing the valid address ranges of incoming packets, an _______ is best placed to ensure that valid source addresses are used in all packets from its customers.

Since Filtering Needs to Be Done as Close to the Source