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Jun 5, 2011

How to Configure Static Route on CISCO Router

Posted by At Sunday, June 05, 2011

Static Route Configurations


In this article I will demonstrate an example of static route configurations. We will use four different series router so you can get familiar with all different platform covered in CCNA exam. Create a topology as shown in figure.

A static route is a manually configured route on your router. Static routes are typically used in smaller networks and when few networks or subnets exist, or with WAN links that have little available bandwidth. With a network that has hundreds of routes, static routes are not scalable, since you would have to configure each route and any redundant paths for that route on each router.
1841 Series Router0 (R1)

FastEthernet0/0Serial0/0/0
IP address10.0.0.120.0.0.1
Connected WithPc0R2 on Serial 0/0
2811 Series Router0 (R4)

FastEthernet0/0Serial0/0/0
IP address50.0.0.140.0.0.2
Connected WithPc1R3 on Serial 0/0
2621XM Series Router0 (R3)

FastEthernet0/0Serial0/0/0
IP address30.0.0.240.0.0.1
Connected WithFastEthernet0/0R4 on Serial 0/0/0
2620XM Series Router1 (R2)

FastEthernet0/0Serial0/0
IP address30.0.0.120.0.0.2
Connected WithR3 on FastEthernet0/0R1 on Serial 0/0/0
PC-PT PC0

FastEthernet0Default Gateway
IP address10.0.0.210.0.0.1
Connected WithR1 on FastEthernet0/0
PC-PT PC1

FastEthernet0Default Gateway
IP address50.0.0.250.0.0.1
Connected WithR4 on FastEthernet0/0

To configure any router double click on it and select CLI.To configure this topology use this step by step guide.

(1841Router0) Hostname R1

To configure and enable static routing on R1 follow these commands exactly.

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname R1
R1(config)#interface fastethernet 0/0
R1(config-if)#ip address 10.0.0.1 255.0.0.0
R1(config-if)#no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R1(config-if)#exit
R1(config)#interface serial 0/0/0
R1(config-if)#ip address 20.0.0.1 255.0.0.0
R1(config-if)#clock rate 64000
R1(config-if)#bandwidth 64
R1(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to down
R1(config-if)#exit
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
R1(config)#ip route 30.0.0.0 255.0.0.0 20.0.0.2
R1(config)#ip route 40.0.0.0 255.0.0.0 20.0.0.2
R1(config)#ip route 50.0.0.0 255.0.0.0 20.0.0.2

(2620XM-Router1) Hostname R2

To configure and enable static routing on R2 follow these commands exactly.

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname R2
R2(config)#interface serial 0/0
R2(config-if)#ip address 20.0.0.2 255.0.0.0
R2(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
R2(config-if)#exit
R2(config)#interface fastethernet 0/0
R2(config-if)#ip address 30.0.0.1 255.0.0.0
R2(config-if)#no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
R2(config-if)#exit
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R2(config)#ip route 10.0.0.0 255.0.0.0 20.0.0.1
R2(config)#ip route 40.0.0.0 255.0.0.0 30.0.0.2
R2(config)#ip route 50.0.0.0 255.0.0.0 30.0.0.2

(2620XM-Router2)Hostname R3

To configure and enable static routing on R3 follow these commands exactly.

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname R3
R3(config)#interface fastethernet 0/0
R3(config-if)#ip address 30.0.0.2 255.0.0.0
R3(config-if)#no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R3(config-if)#interface serial 0/0
R3(config-if)#ip address 40.0.0.1 255.0.0.0
R3(config-if)#clock rate 64000
R3(config-if)#bandwidth 64
R3(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/0, changed state to down
R3(config-if)#exit
%LINK-5-CHANGED: Interface Serial0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
R3(config)#ip route 10.0.0.0 255.0.0.0 30.0.0.1
R3(config)#ip route 20.0.0.0 255.0.0.0 30.0.0.1
R3(config)#ip route 50.0.0.0 255.0.0.0 40.0.0.2

(2811Router3) Hostname R4

To configure and enable static routing on R4 follow these commands exactly.

Router>enable
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#interface serial 0/0/0
Router(config-if)#ip address 40.0.0.2 255.0.0.0
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up
Router(config-if)#exit
Router(config)#interface fastethernet 0/0
Router(config-if)#ip address 50.0.0.1 255.0.0.0
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#ip route 10.0.0.0 255.0.0.0 40.0.0.1
Router(config)#ip route 20.0.0.0 255.0.0.0 40.0.0.1
Router(config)#ip route 30.0.0.0 255.0.0.0 40.0.0.1

PC-1

PC>ipconfig

IP Address......................: 10.0.0.2
Subnet Mask.....................: 255.0.0.0
Default Gateway.................: 10.0.0.1

PC>ping 50.0.0.2

Pinging 50.0.0.2 with 32 bytes of data:

Reply from 50.0.0.2: bytes=32 time=156ms TTL=124
Reply from 50.0.0.2: bytes=32 time=127ms TTL=124
Reply from 50.0.0.2: bytes=32 time=156ms TTL=124
Reply from 50.0.0.2: bytes=32 time=140ms TTL=124

Ping statistics for 50.0.0.2:
   Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
   Minimum = 127ms, Maximum = 156ms, Average = 144ms
PC>

PC-2

PC>ipconfig

IP Address......................: 50.0.0.2
Subnet Mask.....................: 255.0.0.0
Default Gateway.................: 50.0.0.1

PC>ping 10.0.0.2

Pinging 10.0.0.2 with 32 bytes of data:

Reply from 10.0.0.2: bytes=32 time=140ms TTL=124
Reply from 10.0.0.2: bytes=32 time=141ms TTL=124
Reply from 10.0.0.2: bytes=32 time=157ms TTL=124
Reply from 10.0.0.2: bytes=32 time=156ms TTL=124

Ping statistics for 10.0.0.2:
   Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
   Minimum = 140ms, Maximum = 157ms, Average = 148ms

To test static routing do ping from pc1 to pc2 and vice versa. If you get replay then you have successfully configured static routing but if you did not get replay double check this configuration and try to troubleshoot. I have uploaded a configured and tested topology in case you are unable to locate the problem spot then download this configuration file. And try to find out where have you committed mistake.

Thanks to All..........

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