I'm passing through an strange problem and I'd like to ask for your help!!
My scenarios is the following:
I've a ESXi host with some virtual machines, this machines are connected in a dell switch and the dell is connected in a RB1009.
My problem is that the VM are working normally, all go them are using fixed IP address, but when I need to reboot any of them (by example an windows server after a windows update), the server start without network and companies about duplicate ip address.
I've checked everything and I don't have any conflict, neither any DHCP server in this network segment.
What I've noticed is that the ARP table in the RB shows the correct information (mac address and IP address) with only the enabled information in the botou, but the complete option is greyed.
If I force the deletion of the ARP sometimes 20 times, or if I disconnect the VM machine from the network for about 5 minutes and reconnect it again without do anything the server start to work normally again.
I really don't know what to try anymore, some times I disabled the network or change the VM mac address and it works, sometimes it didn't work too, and it was running fine from more than 2 years, only now in after some recent router OS upgrade it starts to appear, but I can't say what upgrade cause this!
Does anybody have seem some problem like this?