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I have configured my network interface on Windows and gave it a static IP address.

After it got enabled, I notice that the name of the network is Network 3:

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  1. In Linux, we know that Interface_name come from the config file under /etc/sysconfig/network-scripts; for example, system eth0 comes from the ifcfg-eth0 file. So, how does Windows name the network interface?

  2. Why is the name of my network Network 3, not Network 1? (What happened to Network 1 and Network 2?

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2 Answers 2

up vote 8 down vote accepted

The interface is named "Ethernet"; you can rename it using F2. (Internally, Windows associates configuration to interfaces by their GUID, not name, so you can use any descriptive name you want.)

"Network 3" is how Windows calls the network you're connected to. As part of Windows Firewall, different networks on the same interface are automatically recognized and can be associated with different firewall profiles (home/work/public in Windows 7, private/public in Windows 8).

In other words, this is the third network Windows has been connected to.

To rename the current network or to manage previously recognized ones, go to the Network & Sharing Center, and click the icon next to "Network 3". (Tested on Windows 7, may have changed on Win8.)

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Here's how to change it in Windows 8: geekality.net/?p=2505 –  Svish Jul 8 at 9:35
    
Reinstalling network drivers can also lead to those names being chosen by Windows. –  ComFreek Jul 8 at 13:32

Disconnecting and reconnecting the Ethernet interface can cause the interface to be renumbered when Windows thinks the network has changed. This often happens when a laptop moves between networks. This can also happen when the interface changes.

FYI, the name of the interface is actually the top label (Ethernet), the second level is the name of the network (Network 3) and the third label is the type of adapter. On a Corporate network, the network will be AD network name (such as Corp.Bigcompany.com). On a home network, using a workgroup rather than AD, it is just the name Network and a numeric id that increases each time that Windows thinks the network has changed.

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