I determined my stable node address to be 91.214.0.1 and informed AS1 of this address to ensure end-to-end connectivity. I checked the current routing table to understand existing routes and received AS1's stable node address, 4.2.2.1. I then added a route to AS1's address and verified connectivity through a successful ping test. Finally, I reported the completion of the initial setup, confirming that the network was functioning as expected.