When a 'show arp' is issued there are numerous entries with ip address and 'incomplete' hardware addresses. No response is given to the ip address from a ping. After a 'clear arp' and then a 'show arp' is then performed, the entry comes back immediately as 'incomplete' , where are these entries coming from? Anyone have any ideas?
What is happening here is some one is trying to access these ip addresses. When they packet hits the router, if the router does not have an entry in arp it will arp for the mac address. When it receives no reponse from the host the arp entry is listed as incomplete. This could be caused by faulty hardware on the segment or the hosts could be powered off.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...