Require software tool for Ethernet frame analyzer

Hi,

I am current working on Ethernet protocol. Do anyone know any software tool for sending and receiving Ethernet frames?

For example: If i send ethernet frame from my custom FPGA Board to my PC, i must be able see the frame contents and similarly create a frame and send it to my custom FPGA Board. This will help debugging my Ethernet design.

Thanks,
Nandish Jasani