testing network adapter by pinging 127.0.0.0

One can test a PC with a network adapter by pinging 127.0.0.0.
What if a PC has more than one network adapter? How to test them?
I got an error message when issuing the command "ping 127.0.0.0 on
a PC that has two network adapters.

John Smith wrote:
> One can test a PC with a network adapter by pinging 127.0.0.0.

not necessarily, which makes the rest moot.


What if a
> PC has more than one network adapter? How to test them? I got an error
> message when issuing the command "ping 127.0.0.0 on a PC that has two
> network adapters.


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