What is Default Route in Networking? – When configuring Routers on the network, you may encounter terms such as default route. The default route configures where to go when IP packets can not reach the destination.
What is Default Route in Networking?

What is Default Route in Networking?

What is Default Route in Networking?

The Default Route is configured to configure where the IP packets will go when the Router has no destination network address in the routing table.

For example, if there is only one Router in the network environment, this Router performs the Default Route task by default. This is because there is no possibility that IP packets coming to the local network will pass over another router.

If there are two or more Routers in the network environment, the Default Route is configured on the Router that is close to the Modem or ISP Router.

Therefore, if a computer that will access the outside network from the inside network wants to access a network that is not in the router’s routing table, it accesses the Internet by evaluating the default route for the IP packets to not fall.

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Cisco Router Default Route Example

To better understand the Default Route command on the Cisco Router, carefully review the following image. By configuring the Default Route on Cisco Router R1, it is explained that unknown networks will always be routed to Router R2.

What is Default Route in Networking?

In such network topologies or in a large network topology, it is absolutely necessary to configure a default route. Otherwise, IP packets will always drop when accessing unknown networks.

How to Configure Default Static Route on Cisco Router?

The answer to how to configure the default static route on Cisco Router is very simple. The following command is used to define the Default Route on a Cisco Router.

R1(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.2

If we explain the above command, when an unknown destination address arrives at the Router, the R1 Router tells it to go to the 10.1.1.2 IP address where it wants to go.

Thus, the route to the IP packet is defined by routing to the Router connected to the Internet.

Another example of using the Default Route command is as follows.

R1(config)# ip route 0.0.0.0 0.0.0.0 Serial0/1/0

At the end of this command, the interface represents the interface on Router R1. This interface is the interface to the Internet Router.

  Final Word

What is Default Route in Networking? – After discussing the default route and what it does briefly, we have examined the default route logic on a small network topology.

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