CLI Guide

Layer 3 Routing Commands 1510
ip route
Use the ip route command in Global Configuration mode to configure a
static route. Use the no form of the command to delete the static route.
Syntax
ip route [vrf vrf-name] networkaddr {subnetmask | prefix-length} {Null0 |
nexthopip | vlan vlan-id [nexthopip]} [preference] [name text][track object-
number]
no ip route [vrf vrf-name] networkaddr {subnetmask | prefix-length} {Null0
| nexthopip | vlan vlan-id [nexthopip]}
• vrf-name—The name of the VRF if which the route is to be installed. If no
vrf is specified, the route is created in the global routing table.
• networkaddr — IP address of destination interface. The address must
contain 0’s for the address bits corresponding to 0’s in the subnetmask.
• subnetmask—A 32 bit dotted-quad subnet mask. Enabled bits in the mask
indicate the corresponding bits of the network address are significant.
Enabled bits in the mask must be contiguous.
• prefix-length—A forward slash followed by an integer number ranging
from 1-32 (e.g., /24). The integer number indicates the number of
significant bits in the address beginning with the leftmost (most
significant) bit.
• nexthopip—The next-hop IPv4 address is specified in the argument
nexthopip. Packets matching the destination route are forwarded to the
next hop IP address. The next hop may be a numbered or unnumbered
interface.
• vlan-id—A configured VLAN routing interface identifier for a VRF or an
IP unnumbered interface. If a VLAN routing interface for a VRF is
specified, it imports the associated subnet into the default routing
instance from the VRF associated with the VLAN.
• Null0 —The optional Null0 keyword indicates that packets matching the
route are dropped. This capability allows the administrator to purposefully
implement a black hole for selected traffic.
• text—A textual name for the route as configured by the administrator.
May be up to 32 characters in length.