I did that deliberately for this particular log. I had done a printenv to learn that the ipaddr default address is 192.168.1.2 so I tried putting my PC on 192.168.1.3 for a peer2peer connection on this attempt.
If I understood correctly, you tried following a modified version of the instructions and that failed, right?
If so, can you now try to follow them exactly, without using commands that are not mentioned, step by step?
We struggle to make complicated things simple: make everyone happy by finding what's not working on that instructions or by making them even simpler.