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How do you manage automatically transferring the ip of the main rpi to the backup rpi when the first disappears?
Keepalived
clone the Mac address
Don't you then run into MAC conflicts?
How do you keep both on the network?
oh. fuck.
Arduino? lol
I'm just spit balling here: backup pi pings munute-ly main pi. if main pi is down 2 pings, it resets Mac and reboots network interface.
Then when the main PI returns it creates a conflict...
oh hm...
hmmm
ok. both pis know the live IP and the backup IP, and have the same config: cold boot into backup I and ping live ip