ip default-network network-number
no ip default-network network-number
Number of the network
To select a network as a candidate route for computing the gateway of last resort, use the ip default-network global configuration command. To remove a route, use the no form of this command.
The Cisco IOS software uses both administrative distance and metric information to determine the default route. Multiple ip default-network commands can be given. All candidate default routes, both static (that is, flagged by ip default-network) and dynamic, appear in the routing table preceded by an asterisk.
If the IP routing table indicates that the specified network number is subnetted and a non-zero subnet number is specified, then the system will automatically configure a static summary route. This static summary route is configured instead of a default network. The effect of the static summary route is to cause traffic destined for subnets that are not explicitly listed in the IP routing table to be routed using the specified subnet.
The following example defines a static route to network 10.0.0.0 as the static default route:Router(config)#ip route 10.0.0.0 255.0.0.0 184.108.40.206 Router(config)#ip default-network 10.0.0.0
In the preceeding example, the ip default-network command will only be in effect if network 10.0.0.0 exists in the router's routing table.
|show ip route|
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