Network device basics 1.2 guided exercise can set eth0 to 192.168.1.254

General
1

network device basics 1.2 guided exercise can set eth0 to 192.168.1.254
i’ve tried and tried I can set any other interface just not eth0 on router.

2

I have problems in the same exercise

3

Turns out i needed a space between a letter and a number.
nosaj