Static default routes with the ip route and ip default network command
A default route is a type of static route that is used to send all traffic to a particular destination network that is not explicitly listed in the routing table. This is typically used when a router needs to send traffic to an external network, such as the Internet, but does not have specific information about the destination network.
There are two common ways to configure a static default route: using the “ip route” command or using the “ip default-network” command.
Here’s how to configure a static default route using the “ip route” command:
Enter the global configuration mode on the router by typing “configure terminal”.
Type “ip route 0.0.0.0 0.0.0.0 next-hop-address” where “next-hop-address” is the IP address of the next-hop router that will be used to forward traffic to the external network.
Verify the static default route by typing “show ip route” and look for the default route in the routing table.
Here’s how to configure a static default route using the “ip default-network” command:
Enter the global configuration mode on the router by typing “configure terminal”.
Type “ip default-network network-address” where “network-address” is the IP address of the external network.
Verify the static default route by typing “show ip route” and look for the default route in the routing table. Note that the “ip default-network” command is considered deprecated and is not recommended for use in newer versions of Cisco IOS. The preferred method is to use the “ip route” command.
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