What is meant by Network Interface Card (NIC)?

Navin Prasad Kumar 61 Reputation points
2019-12-27T05:01:23.78+00:00

While creating VM in azure, NIC also created. Initially, I thought that both the virtual network and NIC are the same. Then I got to know that both are different. So, anyone of you kindly helps me to clarify this

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
7,085 questions
0 comments
Accepted answer
  1. msrini-MSFT 9,256 Reputation points Microsoft Employee
    2019-12-27T05:24:16.007+00:00

    Hi,

    In Azure when you deploy a VM the following components gets deployed along :

    NIC
    Network Security Group
    Public IP
    Disk

    A NIC is a component which holds the Public IP and the private IP of the VM. Also you can associate the NSG to the NIC.

    NIC can be deployed in a subnet of the Virtual Network.

    Hope this helps!

    7 people found this answer helpful.

5 additional answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Asko Kauppinen 21 Reputation points
    2019-12-30T22:13:03.08+00:00

    VM needs at least one NIC, NIC connects VM to the VNet. One VM can have multiple NIC's as well.

    4 people found this answer helpful.
    0 comments
  2. Amey Naik 1 Reputation point
    2020-01-03T05:01:22.867+00:00

    A network interface enables an Azure Virtual Machine to communicate with internet, Azure, and on-premises resources. When creating a virtual machine using the Azure portal, the portal creates one network interface with default settings for you.

    Please find the below link for more information regarding same

    https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-network-interface.

    @Navin Prasad Kumar hope this helps, please accept the answer if information finds useful.

    0 comments
  3. Chaitanya Sreeramsetty 1 Reputation point
    2020-01-03T12:18:51.15+00:00

    Network Interface Card (NIC) is assigned with IP address and associated with NSG rules, which is used for the communication between virtual machine's or internal network or internet.

    Where as the virtual network (vNet) works on layer 3 and layer 4 for communication of traffic in secure way.

    0 comments
  4. Xiaolong 1 Reputation point
    2021-09-17T17:09:23.737+00:00

    If you use Terraform for Azure, you will find NSG rules with NICs,
    because NIC is part of NSG rules.

    Read here:
    https://learn.microsoft.com/en-us/azure/virtual-network/application-security-groups

    0 comments