This involves capturing stderr output from all the 'ip' commands so we can hide that output if we see the process died, or show it to the user if the process didn't die, in which case we don't know why we failed.
This involves capturing stderr output from all the 'ip' commands so we can hide that output if we see the process died, or show it to the user if the process didn't die, in which case we don't know why we failed.