1. A network device comprising: an interface to receive, from a first network, a plurality of packets that are destined for a second network; a controller to transfer, via a first bus, a first packet, of the plurality of packets, from the interface to a storage device within the network device; and a processor to: retrieve, via a second bus, the first packet from the storage device, and perform a plurality of security-related packet processing operations on the first packet, wherein the controller is to concurrently transfer, via the first bus, a second packet, of the plurality packets, from the interface to the storage device.