What is & What happend this pls tell me !!!!

  What is this??  what happend ?

  when i type "arp -a" they show like this

 

they change ip per second  & mac is all zeros.

pls help me.



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I believe your host is attempting to contact nodes which are either "missing", "non-responsive", or "disabled".

Use the "arp -d *" command to flush your local arp cache.  If the same IP addresses with zero MAC addresses reappear, then something on your host is attempting to contact them.

You might be able to use a firewall log or utility similar to "netstat" to identify the sending process.