Hi,
I'm receiving an error when I try to add a vmhost to a vCenter instance. The error is "Host IP Address Conflict Alarm" which makes it sound as though the IP address is a duplicate but it's not. I can see the arp cache for that IP address matches the MAC address for the ESXi host and there's no instability when connecting to it.
I'm just wondering how VMware determines that one of it's hosts has a duplicate IP address? I'm thinking it's in the vCenter DB somewhere (I'm using VCSA 6.5 and ESXi 6.0 in this case). The only other issue I can see is looking at the file /etc/vmware/vpxa/vpxa.cfg the entry for <serverPort> is -1, whereas it's 902 on the other ESXi instances that are using this vCenter server. If I restart the host, it goes back to a value of -1.
I've managed to get it stable with 902 by editing the /etc/vmware/vpxa/vpxa.cfg file and restarting vpxa only by running /etc/init.d/vpxa start and the Vcenter console is no longer complaining that the host has a conflicting IP address, but it's disconnecting from my ESXi host on a regular basis
If I clear all the warnings (including the warning: Host connection and power state) I can reconnect the host from the GUI for a period of about 30 seconds, before it goes back to a state of Not Responding. While it's connected it shows the error: cannot synchronize host.
If you could help, I'd really appreciate it!
Cheers,
Daniel