Simple connection betwenn two ethernet ports on DE2-115

Are you, or are are you not, passing that data thru the two external 88E1111 PHY/MAC devices?

I assumed this is what you are trying to do.

Or are you just trying to connect the two etherNet MAC modules together INSIDE the FPGA device?

I can't tell which from the code you posted, since you don't indicate which signals, if any, are pins on the FPGA, or just internal nodes.