You can clearly see there are four routers in a row and I am going to show you how to configure static routing for this lab scenario.Here i assume that you already know how to assign ip address on router interfaces.I will show you only routing configuration steps.This lab will help ccna students in their certification exams.Before we start configuring static routing we must assign ip address on each and every interface of routers and PC.We will start routing only after assigning ip address and enable each port.
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Configuration on Router R1:
Now I am going to configure static routing on router R1 here.During static routing configuration we have to tell each and every router about the indirectly connected networks.Here 3.0.0.0 ,4.0.0.0 , 5.0.0.0 ,6.0.0.0 and 7.0.0.0 networks are indirectly connected to Router R1.So we have to tell about all these networks to our Router R1.
Router(config)#ip route 3.0.0.0 255.0.0.0 2.0.0.2 Router(config)#ip route 4.0.0.0 255.0.0.0 2.0.0.2 Router(config)#ip route 5.0.0.0 255.0.0.0 2.0.0.2 Router(config)#ip route 6.0.0.0 255.0.0.0 2.0.0.2 Router(config)#ip route 7.0.0.0 255.0.0.0 2.0.0.2
Configuration on Router R2:
Similarly we will tell about all indirectly networks to router R2.
Router(config)#ip route 1.0.0.0 255.0.0.0 2.0.0.1 Router(config)#ip route 5.0.0.0 255.0.0.0 4.0.0.2 Router(config)#ip route 6.0.0.0 255.0.0.0 4.0.0.2 Router(config)#ip route 7.0.0.0 255.0.0.0 4.0.0.2
Configuration on Router R3:
Similarly configure static routing on router R3.
Router(config)#ip route 1.0.0.0 255.0.0.0 4.0.0.1 Router(config)#ip route 2.0.0.0 255.0.0.0 4.0.0.1 Router(config)#ip route 3.0.0.0 255.0.0.0 4.0.0.1 Router(config)#ip route 7.0.0.0 255.0.0.0 6.0.0.2
Configuration on Router R4:
Like above configure static routing over router R4.
Router(config)#ip route 1.0.0.0 255.0.0.0 6.0.0.1 Router(config)#ip route 2.0.0.0 255.0.0.0 6.0.0.1 Router(config)#ip route 3.0.0.0 255.0.0.0 6.0.0.1 Router(config)#ip route 4.0.0.0 255.0.0.0 6.0.0.1 Router(config)#ip route 5.0.0.0 255.0.0.0 6.0.0.1
Troubleshooting Command:
Now to test route on router R1 type below command:
Router>enable Router#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area * - candidate default, U - per-user static route, o - ODR P - periodic downloaded static route Gateway of last resort is not set C 1.0.0.0/8 is directly connected, FastEthernet0/0 C 2.0.0.0/8 is directly connected, FastEthernet0/1 S 3.0.0.0/8 [1/0] via 2.0.0.2 S 4.0.0.0/8 [1/0] via 2.0.0.2 S 5.0.0.0/8 [1/0] via 2.0.0.2 S 6.0.0.0/8 [1/0] via 2.0.0.2 S 7.0.0.0/8 [1/0] via 2.0.0.2 Router#
Explanation of above command:
You can clearly see C and S options.
C means network directly connected with router R1.
S means network which are indirectly connected with router R1 and for which we have configured static route.
IF you want to see the detail information of router interfaces,like its ip addresses,port is up or down you can use below command.
Router#show ip interface
FastEthernet0/0 is up, line protocol is up (connected)
Internet address is 1.0.0.1/8
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is disabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP Fast switching turbo vector
IP multicast fast switching is disabled
IP multicast distributed fast switching is disabled
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
Input features: MCI Check
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
FastEthernet0/1 is up, line protocol is up (connected)
Internet address is 2.0.0.1/8
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is disabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP Fast switching turbo vector
IP multicast fast switching is disabled
IP multicast distributed fast switching is disabled
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
BGP Policy Mapping is disabled
Input features: MCI Check
WCCP Redirect outbound is disabled
WCCP Redirect inbound is disabled
WCCP Redirect exclude is disabled
Vlan1 is administratively down, line protocol is down
Internet protocol processing disabled
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