sudo ip route add 127.0.0.0/24 dev lo
...1 would
require /32
https://www.linuxquestions.org/quest...th-4175703568/
Try searching "<the err msg>" [site:linuxquestions.org]
P.S. 127 should be /8 And no route (to it) is needed.
ping 127.255.255.254 # should succeed!
FYI: your hand transcription of 2nd cmd is incorrect, because what you wrote would say:
Command "route" is unknown, try "ip address help".
https://www.cyberciti.biz/faq/linux-...-usage-syntax/