Need help in capturing serial data using FPGA and ethernet interface

hello,

i want to capture 2 mbps serial data stream through my ethernet card.
i already have a Virtex FPGA based hardware and I want to add it this
data logging funtionality.
I want to use FPGA to convert the received serial data into ethernet
format and dump it onto the ethernet interface. Then i can use some
port sniffer to capture that data.

i just have the vague idea. kidly someone tell me, how much is this
feasible.

also, i need to know where i can find the most relevant helping
material.

Regards,
Amir Amin