Arduino choice of ethernet shield?

You need to format any code you paste here by placing the three backticks and the letters cpp in front of the code followed by three more backticks at the end. NOTE the backtick key is NOT a quotation or comma… see the diagram below.

I have edited your above post with the code snippets, to show you how it is done.

Click on the edit icon (see below) at the bottom of your post and you will be able to see how the formatting is done for the future.