Recently, we have made a major upgrade of the network infrastructure for one customer. We replaced the old switches and introduced the complete VLAN infrastructure. At the end of the day, everything seemed to be good.
Then, after two days, DUDE started to raise alarms related to DHCP service. We received a bunch of e-mails related to an empty DHCP pool. It was a mystery how this DHCP pool emptied when there are only 10 workstations and this happened during a public holiday when the offices were empty. Continue reading