Currently I'm seeing broadcast traffic sent from a single host to every IP address, which can not be normal behavior given it won't be "looking" for each IP. Note that this is /22 as well, so it cycles through all IP's, asking "Who has...?"
That is unusual behavior. Hosts don't normally scan the entire subnet. The host should only send ARP when it needs a MAC address for an IP address. It is either a software bug, or installed software trying to find out what is connected to the network.
That is ARP working as it should. Why that host insists on polling each and every host in it's local subnet is something you need to investigate on the machine itself.
But it could be something as silly as defining a network printer by name and not the IP address. If th machine can't resolve the name it will poll each host on your network t find the printer.
Can you imagine what hapens to a switched network if you use 10.0.0.0/8 as local network?
Asked: 2021-08-12 07:29:21 +0000
Seen: 1,144 times
Last updated: Aug 12 '21
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