Reference Guide

304 | IPv4 Routing
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Defaults
Not configured.
Command Modes
CONFIGURATION
Command
History
Usage
Information
Using the following example of a static route:
ip route 33.33.33.0 /24 tengigabitethernet 0/0 172.31.5.43
• The software installs a next hop that is not on the directly connected subnet but which recursively
resolves to a next hop on the interface’s configured subnet. In the example, if gig 0/0 has ip
address on subnet 2.2.2.0 and if 172.31.5.43 recursively resolves to 2.2.2.0, FTOS installs the
static route.
• When the interface goes down, FTOS withdraws the route.
• When the interface comes up, FTOS re-installs the route.
• When recursive resolution is “broken,” FTOS withdraws the route.
• When recursive resolution is satisfied, FTOS re-installs the route.
Related
Commands
ip source-route
Enable FTOS to forward IP packets with source route information in the header.
Syntax
ip source-route
To drop packets with source route information, use the no ip route-source command.
interface
Enter the following keywords and slot/port or number information:
• For a loopback interface, enter the keyword
loopback followed by a number from
zero (0) to 16383.
• For the null interface, enter the keyword
null followed by zero (0).
• For a Port Channel interface, enter the keyword
port-channel followed by a
number:
Range: 1-128
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
followed by the slot/port information.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE followed by the
slot/port information.
• For a VLAN, enter the keyword
vlan followed by a number from 1 to 4094.
distance
(OPTIONAL) Enter a number as the distance metric assigned to the route.
Range: 1 to 255
permanent (OPTIONAL) Enter the keyword permanent to specify the route is not removed, even
if the interface assigned to that route goes down. The route must be up initially to install
it in the routing table.
If you disable the interface with an IP address associated with the keyword
permanent, the route disappears from the routing table.
tag tag-value (OPTIONAL) Enter the keyword tag followed by a number to assign to the route.
Range: 1 to 4294967295
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
show ip route Views the switch routing table.