I have got a switched network with about 1600 devices connected to it. I have connected a packet sniffer onto the network and I noticed that I am able to sniff a lot of packets that should have been switched – Directed Traffic. When I check the data packets I noticed that there is a destination MAC Address in the data packet. I connected the packet sniffer to a different section on the network and it is the same. When I check on the switches the MAC Address is not in the ARP table. I have increased the aging time of the arps cache and it has made no difference. My main switches are Dell Poweredge 5324 and the rest are a mix between 3Com and Cabletron. The switches are not even sending a broadcast packet asking for the MAC Address of the Server or Computer. When I check the port where the server is connected to it doesn’t show the MAC Address of the server. What can I do to solve this problem. Thanks Carsten
