Two tunnels exist between Nounours (my main router) and Amsat (The OZ7SAT group's SatNOGS groundstation at Amanger):

1. The main tunnel, the purpose of which is to enable management access to AMSAT
2. The backup tunnel, which primarily exists because the main tunnel that uses Wireguard from time to time stops working. I can the use the backup tunnel to access Amsat and remedy the situation.