Initial configuration of Cisco routers

Initial configuration of Cisco routers

R1-2500
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conf t
hostname R1-2500
enable secret cisco

line consol 0
password cisco
login
logging synchronous

exec-timeout 30 15
!This command means that if there is no activity through console for 30min 15 sec logout.
exit

line vty 0 4
password cisco
login
loggin synch
exit

no ip domain-lookup

banner motd #
-------------------------------------------------------------------------
Unauthorized access not allowed
-------------------------------------------------------------------------
#

!Configure IP address on R1

interface s0
ip address 192.168.1.2 255.255.255.0
no shut
exit
exit

write memory

---------------------------------------------------
BB
---------------------------------------------------
conf t
hostname BB-2610
enable secret cisco

line consol 0
password cisco
login
logging synchronous

exec-timeout 30 15
!This command means that if there is no activity through console for 30min 15 sec logout.
exit

line vty 0 4
password cisco
login
loggin synch
exit

no ip domain-lookup

interface s1/0
ip address 192.168.1.1 255.255.255.0
clock rate ?
clock rate 64000
no shut
exit

interface s1/1
ip address 192.168.2.1 255.255.255.0
no shut
clock rate 56000
exit

interface s1/2
ip address 192.168.3.1 255.255.255.0
no shut
clock rate 64000
exit

interface s1/3
ip address 192.168.4.1 255.255.255.0
no shut
clock rate 64000
exit

---------------------------------------------------
R2
---------------------------------------------------
conf t
hostname R2
enable secret cisco

line consol 0
password cisco
login
logging synchronous

exec-timeout 30 15
!This command means that if there is no activity through console for 30min 15 sec logout.
exit

line vty 0 4
password cisco
login
loggin synch
exit

no ip domain-lookup

interface s0
ip address 192.168.2.2 255.255.255.0
no shut
exit

---------------------------------------------------
R3-2612
---------------------------------------------------
conf t
hostname R3-2612
enable secret cisco

line consol 0
password cisco
login
logging synchronous

exec-timeout 30 15
!This command means that if there is no activity through console for 30min 15 sec logout.
exit

line vty 0 4
password cisco
login
loggin synch
exit

no ip domain-lookup

interface s0/0
ip address 192.168.3.2 255.255.255.0
no shut
exit


! we have troubleshooting commands
show ip interface brief
!This shows the information about the interaces, you see their names, whether they up or down.

show interface s0/0
!this show s the details about the interface

!To check the cable type connected to an interface type
sh controllers s0/0

!To check the version
show version

!To check the routing table of the cisco router
show ip route
!A router can route to networks stated in the routing table.