arping broken on Mojave

[Ryan Schmidt]

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.