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#### Sun Netra X6270 M2 Server Module Installation Guide for Windows Operating Systems |

| Part II Windows Server System Administrator References F. Identifying Network Interfaces in Windows Procedures for Identifying Network Interfaces |

# Confirm Physical Port MAC Addresses and Match Them to Windows Device Names

To confirm the MAC addresses of installed network interface ports and to match them to the Windows Device Friendly Names, you need to open a command prompt and run `ipconfig /all`, as described below:

1. Click --> `Start` --> `Run`.

   The Run dialog appears.

2. In the Run dialog, type `cmd` then click `OK`.

   The cmd.exe DOS window appears.

3. In the cmd.exe DOS window, enter the following command at the prompt: `ipconfig /all`

   The output from the `ipconfig /all` command identifies the installed network interface ports by the connection name in the order of enumeration.

   The output does not necessarily follow an alpha or numeric order. You can customize the connection name in the Network Connections folder. For details, see Microsoft’s documentation. The output below illustrates how the Windows operating system, by default, assigns logical names to network interfaces.

   Figure Item Number | Description
   --- | ---
   1 | Second Ethernet adapter port.
   2 | First Ethernet adapter port.

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