CLI Reference Guide-R07

Table Of Contents
Chapter 27
| IP Interface Commands
IPv4 Interface
– 650 –
ip default-gateway This command specifies the default gateway for destinations not found in 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
The default gateway can also be defined using the following Global
configuration command: ip route 0.0.0.0 0.0.0.0 gateway-address.
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.
A default gateway can only be successfully set when a network interface that
directly connects to the gateway has been configured on the router.
The same link-local address may be used by different interfaces/nodes in
different zones (RFC 4007). Therefore, when specifying a link-local address for a
default gateway, include zone-id information indicating the VLAN identifier
after the % delimiter. For example, FE80::7272%1 identifies VLAN 1 as the
interface.
Example
The following example defines a default gateway for this device:
Console(config)#ip default-gateway 192.168.0.1
Console(config)#
Related Commands
ip address (648)
ip route (686)
ipv6 default-gateway (660)