The NetFPGA is a low-cost reconfigurable hardware platform optimized for high-speed networking. The NetFPGA includes all the logic resources, memory, and Gigabit Ethernet interfaces required to build a complete switch, router, and/or any other security device. Because the entire data path is implemented in hardware, the system can support back-to-back packets at full Gigabit line rates and has a processing latency measured in very few clock cycles. The security of the packet transfer using NETFPGA is one that has not yet been implemented on a more secure scale due to hardware limitation as many of the advanced algorithms such as AES or DES cannot be used due to their high complexity and excessive use of resources. In light of this I used a lightweight cryptographic algorithm called Present algorithm to enhance the security in netfpga by creating a module dedicated for encrypting the data transmitted by the netfpga. The algorithm is implemented using Xilinx for the initial testing and then the bit file is burned on the chip for real time emulation. Once the ping or rather the connection between the two connected machines is established the encrypted message is sent from the transmitter to the receiver and the output is observed.