Configuring Static Unicast Routes - Cisco 3032 Software Configuration Manual

Chapter 38 Configuring IP Unicast Routing

Configuring Static Unicast Routes

Static unicast routes are user-defined routes that cause packets moving between a source and a
destination to take a specified path. Static routes can be important if the router cannot dynamically build
a route to a particular destination and are useful for specifying a gateway of last resort to which all
unroutable packets are sent.
Beginning in privileged EXEC mode, follow these steps to configure a static route:
Command
Step 1 configure terminal
Step 2 ip route prefix mask {address | interface} [distance]
Step 3 end
Step 4
show ip route
Step 5 copy running-config startup-config
Use the no ip route prefix mask {address | interface} global configuration command to remove a static
route.
The switch retains static routes until you remove them. However, you can override static routes with
dynamic routing information by assigning administrative distance values. Each dynamic routing
protocol has a default administrative distance, as listed in
overridden by information from a dynamic routing protocol, set the administrative distance of the static
route higher than that of the dynamic protocol.
Table 38-16
Route Source
Connected interface
Static route
Enhanced IRGP summary route
External BGP
Internal Enhanced IGRP
IGRP
OSPF
Internal BGP
Unknown
Static routes that point to an interface are advertised through RIP, IGRP, and other dynamic routing
protocols, whether or not static redistribute router configuration commands were specified for those
routing protocols. These static routes are advertised because static routes that point to an interface are
considered as connected in the routing table and hence lose their static nature. However, if you define a
static route to an interface that is not one of the networks defined in a network command, no dynamic
routing protocols advertise the route unless a redistribute static command is specified for these
protocols.
OL-12247-04
Dynamic Routing Protocol Default Administrative Distances
Default Distance
0
1
5
20
90
100
110
200
225
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
Configuring Protocol-Independent Features
Purpose
Enter global configuration mode.
Establish a static route.
Return to privileged EXEC mode.
Display the routing table to verify the configuration.
(Optional) Save your entries in the configuration file.
Table 38-16. If you want a static route to be
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