Clear IP Route * Command on CISCO Router/Switch

Command

Clear IP Route *

Use

Clears the routing table.

Syntax

Route#clear ip route *

Example

For this example, the routing table is cleared on R2. Here is the routing table before clearing it.

R2(config-router)#do show ip route rip
1.0.0.0/32 is subnetted, 3 subnets
R 1.1.1.1 [120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
R 1.3.3.3 [120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
R 1.2.2.2 [120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
192.168.13.0/30 is subnetted, 1 subnets
R 192.168.13.0 [120/1] via 10.2.2.3, 00:00:23, FastEthernet1/0
[120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
33.0.0.0/32 is subnetted, 1 subnets
R 33.33.33.33 [120/1] via 10.2.2.3, 00:00:23, FastEthernet1/0
3.0.0.0/32 is subnetted, 1 subnets
R 3.3.3.3 [120/1] via 10.2.2.3, 00:00:23, FastEthernet1/0
111.0.0.0/32 is subnetted, 1 subnets
R 111.111.111.111 [120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
10.0.0.0/24 is subnetted, 3 subnets
R 10.4.4.0 [120/1] via 10.2.2.3, 00:00:23, FastEthernet1/0
[120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
11.0.0.0/32 is subnetted, 1 subnets
R 11.11.11.11 [120/1] via 10.1.1.1, 00:00:22, FastEthernet0/0
133.133.0.0/32 is subnetted, 1 subnets
R 133.133.133.133 [120/1] via 10.2.2.3, 00:00:23, FastEthernet1/0

Next, the routing table is cleared.

R2(config-router)#do clear ip route *

After clearing the table, show ip route rip is executed and returns nothing.

R2(config-router)#do show ip route ripR2(config-router)#

Shortly after, the routing table refreshes.

R2(config-router)#do show ip route rip
1.0.0.0/32 is subnetted, 3 subnets
R 1.1.1.1 [120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
R 1.3.3.3 [120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
R 1.2.2.2 [120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
192.168.13.0/30 is subnetted, 1 subnets
R 192.168.13.0 [120/1] via 10.2.2.3, 00:00:00, FastEthernet1/0
[120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
33.0.0.0/32 is subnetted, 1 subnets
R 33.33.33.33 [120/1] via 10.2.2.3, 00:00:00, FastEthernet1/0
3.0.0.0/32 is subnetted, 1 subnets
R 3.3.3.3 [120/1] via 10.2.2.3, 00:00:00, FastEthernet1/0
111.0.0.0/32 is subnetted, 1 subnets
R 111.111.111.111 [120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
10.0.0.0/24 is subnetted, 3 subnets
R 10.4.4.0 [120/1] via 10.2.2.3, 00:00:00, FastEthernet1/0
[120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
11.0.0.0/32 is subnetted, 1 subnets
R 11.11.11.11 [120/1] via 10.1.1.1, 00:00:00, FastEthernet0/0
133.133.0.0/32 is subnetted, 1 subnets
R 133.133.133.133 [120/1] via 10.2.2.3, 00:00:00, FastEthernet1/0

Related Articles

Leave a Reply

avatar