What is Default Gateway? & How to Check Default Gateway

Default gateway

Default Gateway

A Default Gateway is a node (router) in a computer network. A Default Gateway server as an IP A router that a network computer used to send data to a computer in another network or Internet. The Internet wouldn’t be any use to us without a gateway.

Default gateway often connects your local network to the internet, although internal gateways for communication within a local network also serve a useful purpose in corporate networks.

Why We Used Default Gateway?

The source device and destination device are either on the same subnet or they're on different subnets. 

For Example

So now our source and destination address and subnet masks are:

192.168.69.22 255.255.255.0

192.168.53.17 255.255.255.0

we are still using /24 subnet masks, we know these two devices are in different subnets since the third octet for each is different.

Subnets are used to break up broadcasts, using the broadcast mechanism with an ARP table will not work in this situation. For Handle This type of Situations we will use the default Gateway.

If You Read About What Is Computer Networking? Click On Link and Read Out.

Network Administrators configure the computer routing Capability with an IP range starting address as the default gateway and points all clients to that IP address.

The default gateway always resides in the same subnet as the end device IP. The gateway can really be any unique address within the subnet itself, but most network administrators designate the first number of the subnet as the gateway.

How to Get default Gateway in Windows

• Step 1 – To open a CMD command prompt.
• Step 2 – Enter “ipconfig” and press the Enter.

Default Gateway in Windows

• Step 3 – The number indicates the Default Gateway is your router Ip Address.

If You Read About What is Firewall? Click On Link and Read Out.

How to Get default Gateway in Mac

Launch the terminal app from /Applications/Utilities/ and then use the “route” command to display gateway information.

route get default | grep gateway

the ‘gateway ’is will be return

$ route get default | grep gateway

Gateway: 192.168.1.1

Default Gateway in Mac

How to Get default Gateway in Android

• Step 1 – To connect with Wi-fi.
• Step 2 – Go to Setting options
• Step 3 – click on Connection / Wi-fi settings.
• Step 4 – Tap on your Wi-fi Network Name.

Default Gateway in Android

• Step 5 – Here is all the information related to the current Network Connection is Provided.

How to Change Default Gateway:

• Step 1 – Attach a Console to the Filer.
• Step 2 – Enter netstat –rn
• Step 3 – Obtain the Name and IP Address of the new gateway.
• Step 4 – Enter route delete the default.
• Step 5 – Enter netstat –rn to check default gateway is removed.
• Step 6–  Enter route add default new_gateway _IP_or_name  1
• Step 7 – New the default gateway will be stored.