Trouble with setting up Ethernet

Hello, guys!

I am a beginner on learning FPGA,

recently my professor ask my to transmit the data from the FPGA to a LAN or internet via ethernet, and I am deeply troubled by this

First, I try to follow the tutorial on "Using Triple-Speed Ethernet

on DE2-115 Boards"

However I found out that it also needs to use NIOS II, however, I already use it for computation purpose before. I want the data transmission and the computation to process at the same time.

Is there any way that I can do this let NIOS execute two different codes at the same time?

Also, I found out that instead of storing the code in SDRAM, the tutorial store the code in "Altera Monitor Program" - on chip memory,

will it infer any conflicts?

I also thought about build two nios on the system, is this possible?

Thanks!