Administrator Guide

Conguring Static Routes
A static route is an IP address that you manually congure and that the routing protocol does not learn, such as open shortest path
rst (OSPF). Often, static routes are used as backup routes in case other dynamically learned routes are unreachable.
You can enter as many static IP addresses as necessary.
To congure a static route, use the following command.
• Congure a static IP address.
CONFIGURATION mode
ip route ip-address mask {ip-address | interface [ip-address]} [distance] [permanent]
[tag tag-value]
Use the following required and optional parameters:
– ip-address: enter an address in dotted decimal format (A.B.C.D).
– mask: enter a mask in slash prex-length format (/X).
– interface: enter an interface type then the slot/port information.
– distance: the range is from 1 to 255. (optional)
– permanent: keep the static route in the routing table (if you use the interface option) even if you disable the interface
with the route. (optional)
– tag tag-value: the range is from 1 to 4294967295. (optional)
Example of the show ip route static Command
To view the congured routes, use the show ip route static command.
Dell#show ip route static
Destination Gateway Dist/Metric Last Change
----------- ------- ----------- -----------
S 2.1.2.0/24 Direct, Nu 0 0/0 00:02:30
S 6.1.2.0/24 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.2/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.3/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.4/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.5/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.6/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.7/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.8/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.9/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.10/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.11/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.12/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.13/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.14/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.15/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.16/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 6.1.2.17/32 via 6.1.20.2, Te 5/0 1/0 00:02:30
S 11.1.1.0/24 Direct, Nu 0 0/0 00:02:30
Direct, Lo 0
--More--
The system installs a next hop that is on the directly connected subnet of current IP address on the interface (for example, if
interface tengig 0/0 is on 172.31.5.0 subnet, the system installs the static route).
The system also installs a next hop that is not on the directly connected subnet but which recursively resolves to a next hop on the
interface's congured subnet. For example, if tengig 0/0 has ip address on subnet 2.2.2.0 and if 172.31.5.43 recursively resolves
to 2.2.2.0, the system installs the static route.
• When the interface goes down, the system withdraws the route.
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IPv4 Routing