ESXI IP address woes

mattcar — Wed, 11 Oct 2023 23:23:35 GMT

HI, I have a physical server that I have installed Vsphere ESXI 8 and running Vcenter as a VM on the same host.

I can successfully login to both EXSI panel and Vcenter on publicly exposed IP addresses behind the ESXI firewall.

I have setup a windows server VM on one of my IP addresses from within my /28 range and it works fine. I have tested other IP addresses within the same /28 and they all work fine.

The problem I'm experiencing happens when I attempt to configure a new windows VM using any of the 6 IP addresses from my additional /29 range that has been routed to the /28.

When configuring the ipv4 settings in Windows Server VM it will not allow me to use the /28 subnet mask (255.255.255.240) for any of the /29 addresses, and also warns me that the gateway is on a different address.

But I should be able to use the same subnet and gateway for for both /28 /29 ranges due to how they have been routed to my network interface, right? perhaps not? maybe there's some extra network configuring to do within ESXI?

Thanks in advance for any responses.

Re: ESXI IP address woes

mattcar — Thu, 12 Oct 2023 01:36:11 GMT

Re: ESXI IP address woes

Sachchidanand — Thu, 12 Oct 2023 05:53:46 GMT

You can not use the same subnet as /28 as well as /29. Use either of the one.

Regards,

Sachchidanand

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ESXI IP address woes

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Re: ESXI IP address woes