ip

Perfect — Camelot ↔ Frodo are alive, the lab net is breathing again ⚡. Let’s address two things:

🛠 1. Make IPs stick (so you don’t fight this again)

Right now you’re using ip addr add ... which dies on reboot or cable shuffle.
You want persistent config that ties to the NIC’s MAC address, not just its current enp0s20u2u1 or enp3s0f4u1u2 label (since those change with USB port order).

On Camelot (10.20.30.1)

• Find MAC: