macOS Lots of Problems Pinging Mac Addresses

[bobber205]

For a php page, I want to be able to ping local lan area Mac addresses of the other two macs in the house. Basically to see if they're on or off (is a newb ).

When searching, I ran across ARPING. But I cannot seem to use it correctly. I keep getting errors like this one.

arping 00:17:f2:3f:2d:8f
arping: libnet_get_ipaddr4(libnet): libnet_get_ipaddr4(): ioctl(): Can't assign requested address

hmm. I don't know what the means. I am certain I have the mac addresses written right.

Any suggestions on what I should do?

 

[jsw]

Just out of curiosity, why don't you just ping their IP addresses?

 

[bobber205]

Because IP addresses change sometimes. Though I could do that in this case.
(BTW how do you ping just once?)

The main reason is because a co-worker at work as able to do it... so I should be able too

 

[jsw]

Because IP addresses change sometimes. Though I could do that in this case.
(BTW how do you ping just once?)

The main reason is because a co-worker at work as able to do it... so I should be able too

If you select "Using DCHP with manual address" as a TCP/IP option in System Preferences...->Network, you can ensure they're always the same.

Also, to ping once, just use "ping -c 1 [address]".

 

[bobber205]

Well gosh.

I had the arguments going after address. D'oh!