Packet generators create a discrete chunk of communication in a predefined format. A packet is a data block containing a header that includes a destination address (e.g., an IP address). All network communications that occur across a packet-switched system transmit packets. These packets are then reassembled by a receiving system frame at the destination. The purpose of a packet generator is to permit users or network specialists to construct a packet (e.g., WAN packet, VoIP packet, or IPsec packet) from one or more specific protocol stack areas for the purpose of testing security, communication effectiveness, or source-to-destination accuracy.