Q: IP addresses and ports

I have no idea about IP addresses and ports (as used in oscii-bot scripts, and generally). Can someone explain them clearly? I understand that oscii-bot needs to communicate with Reaper and with the MIDI control surface, in and out. So it needs 4 connections. I see these examples in sample_script.txt Code:

Thank you for the explanations - now I just need to think them through. PS - I've just got an Akai MIDImix :) and am very grateful for your MIDImix oscii-bot script. When I'm brave / knowledgeable enough I'll have a look at some ideas I have for that script too. ;) Meanwhile, I'm working on this at the moment: >>>

Q: New Router - new Local IP address? 

Yes. 192.168.1.64 will be correct to use. Your new router has dynamically allocated this different address. If you wish you can login to the new router and tell it to permanently associate this IP address (or any other chosen from the 192.168.1.n range) to the MAC address of your Reaper PC. Then the IP address will never change whilst you use your Reaper PC on the network of this router.

Thank you - it works OK; I got a bit concerned when i managed to mess up the router. And I was slightly surprised that a broadband router can give a computer an IP address, rather than be told what the computer's IP address is.