How to add multiple DHCP private IP addresses on a single NIC from inside Windows OS

Question

I have successfully added the secondary DHCP private IP address in azure portal. when I tried to run ipconfig /all, it shows only one IP address and that is primary IP address. Then I tried to add the IP address from inside windows operating system in "Advanced TCP/IP settings" it is not allowing. The "Add" button is greyed out. I am assuming that this is happening due to "DHCP enabled" hence I am unable to add another secondary DHCP private IP address.

Please guide me how to proceed further configuring secondary DHCP private IP address from inside windows operating system.

Answer 1

Hello,

When using DHCP, you cannot manually add multiple IP addresses to a single network interface from within the Windows operating system. DHCP automatically assigns IP addresses to the NIC, and you won't be able to add additional IP addresses manually.

Can I deploy a DHCP server in a VNet?

Azure VNets provide DHCP service and DNS to VMs and client/server DHCP (source port UDP/68, destination port UDP/67) not supported in a VNet. You cannot deploy your own DHCP service to receive and provide unicast/broadcast client/server DHCP traffic for endpoints inside a VNet. It is also an unsupported scenario to deploy a DHCP server VM with the intent to receive unicast DHCP relay (source port UDP/67, destination port UDP/67) DHCP traffic.

https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-faq#can-i-deploy-a-dhcp-server-in-a-vnet:~:text=Can%20I%20deploy%20a-,DHCP,-server%20in%20a%20VNet%3F

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