C
HAPTER
44
| IP Interface Commands
IP Interface
– 1008 –
ip default-gateway This command specifies the default gateway for destinations not found in
the local routing tables. Use the no form to remove a default gateway.
SYNTAX
ip default-gateway gateway
no ip default-gateway
gateway - IP address of the default gateway
DEFAULT SETTING
No default gateway is established.
COMMAND MODE
Global Configuration
COMMAND USAGE
â—† The default gateway can also be defined using the following command:
ip route 0.0.0.0 0.0.0.0 gateway-address.
â—† Static routes can also be defined using the ip route command to ensure
that traffic to the designated address or subnet passes through a
preferred gateway.
â—† A default gateway can only be successfully set when a network
interface that directly connects to the gateway has been configured on
the router.
EXAMPLE
The following example defines a default gateway for this device:
Console(config)#ip default-gateway 10.1.1.254
Console(config)#end
Console#show ip route
Codes: C - connected, S - static, R - RIP, B - BGP
O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default
S* 0.0.0.0/0 [1/0] via 10.1.1.254, VLAN1
C 127.0.0.0/8 is directly connected, lo0
C 192.168.2.0/24 is directly connected, VLAN1
RELATED COMMANDS
ip route (1020)
show ip route (1021)
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