What Is Default Gateway?
Default gateway is a computer or a hardware device that is connected to a direct Internet line, and works as an intermediary to allow communication between the computers in the in network and the different network (typically the Internet).
How Default Gateway Works in Organizations?
Almost every organization has a single Internet connection which is shared among multiple users in the network. Administrators in organizations install a proxy server or a hardware firewall that has minimum two LAN ports. One LAN port is connected to the direct Internet line a.k.a. external network, whereas the second LAN port is connected to the LAN switch, which is further connected to all computers in the office network a.k.a. internal network.
LAN port of the proxy server or firewall device that is connected to the Internet is assigned with the IP address provided by the ISP. On the other hand, LAN port of the proxy server or device that is connected to the internal network is assigned with the IP address, which the administrators have specified internally.
How Default Gateway Works in Homes?
In home networks, most ISPs provide Internet modems that are easy to configure and use. Since these Internet modems also have internal (RJ-45) and external (RJ-11) ports, the IP address assigned to the internal port of the modem is used as default gateway for home computers. (Mostly the IP address assigned to internal port in such Internet modems is 192.168.1.1.)
Considerations While Providing Default Gateway
- Default gateway enables communication between different networks (typically the Internet) only when appropriate DNS address is also provided to the client computer.
- A client computer should not be specified with more than one default gateway.
- To stop communication between a client computer and different network, removing default gateway alone can get the task done. DNS address should be left intact for effective and efficient name resolution process.
How to Provide Default Gateway?
To provide default gateway to a Windows 8 computer, steps below must be followed:
- Use the administrator account credentials to log on to Windows 8 computer, on which default gateway is to be provided.
- Click Desktop tile from the Start screen to view the desktop.
- From the desktop screen, hover mouse to the bottom right corner of the window.
- From the displayed options in the right, click Settings.
- On Settings pane, click Control Panel.
- On Control Panel window, click Network and Internet.
- On Network and Internet window, click Network and Sharing Center category from the right pane.
- On Network and Sharing Center window, click Change adapter settings from the left pane.
- On Network Connections window, right-click the network adapter on which default gateway is to be provided.
- From the context menu that appears, click Properties.
- On network adapter’s properties box, double-click Internet Protocol Version 4 (TCP/IPv4) from This connection uses the following items list.
- On Internet Protocol Version 4 (TCP/IPv4) Properties box, provide the IP address of default gateway in Default gateway field.
- Once done, click OK to assign the provided default gateway to the computer.
- Back on network adapter’s properties box, click OK.
- Close all the opened windows when done.