https://wiki.friendlyarm.com/wiki/index.php/NanoPi_R2S

Orange Pi R1 Plus OpenWrt

• Backup, Backup, Backup!
  • Configuration backup works quite well

Before rebooting: Wake a machine inside the LAN so there's backup TeamViewer access if ZeroTier stops working

Simply use a custom device name `<eth_device>.<vlan_id>`

https://kysonlok.github.io/2020/06/12/Set-Up-a-ZeroTier-Network-on-OpenWRT/

MAKE SURE TO APPLY THE FIREWALL RULES FOR ZEROTIER