On Nov 23, 2019, at 12:17, Ryan Schmidt wrote: > On Nov 23, 2019, at 04:02, Richard L. Hamilton wrote: > >> from a 15" 2017 MacBook Pro: >> >> sh-3.2$ sudo arping echo-dot-lr >> arping: libnet_init(LIBNET_LINK, <null>): <no error message> >> sh-3.2$ sudo arping crabapple >> arping: libnet_init(LIBNET_LINK, <null>): <no error message> >> >> (also with MAC or IP for crabapple, a 2018 Mac Mini also running Mojave) >> >> Has anyone else seen this? Or am I doing something wrong? Its >> dependencies are up-to-date; indeed, I forcibly uninstalled and >> reinstalled it and them, no difference. It also fails with the port freshly >> installed on crabapple. > > I see the same on High Sierra. I filed a bug report: > > https://github.com/ThomasHabets/arping/issues/36
Somebody has replied there, saying it works if you specify which interface to use.
