nmcli | Eckford on the side

Frodo's USB NIC

# 10.20.30.x restore
# Frodo  : profile=shared-eth  ip=10.20.30.2/24
sudo nmcli con mod shared-eth ipv4.method manual ipv4.addresses 10.20.30.2/24 && sudo nmcli con down shared-eth && sudo nmcli con up shared-eth

# Camelot: profile=camelot     ip=10.20.30.1/24
nmcli dev status
sudo nmcli con mod camelot connection.interface-name <ethernet-device> ipv4.method manual ipv4.addresses 10.20.30.1/24 ipv4.gateway ""
sudo nmcli con down "Wired connection 1" ; sudo nmcli con up camelot

nmcli

make IPs stick

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:

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