Cisco Router 2800 Series and Cisco Switch 3550 Series Configuration for a small office

  

 

 

Configuration – 
The user execution mode:  

router>

Entering into privilege mode from user execution mode:  

router>enable

router#

Exiting from privilege mode to user execution mode:  

router#disable

router>

Entering in global configuration mode from privilege mode:  

router#configure terminal

router(config)#

Exiting from global configuration mode to privilege mode:  

router(config)#exit

router#

Entering into interface mode from global configuration mode. Here we have to specify the router’s interface.  

router(config)#interface fa0/0

router(config-if)#

Exiting from interface mode to global configuration mode.  

router(config-if)#exit

router(config)#

Exiting from interface mode to privilege mode.  

router(config-if)#end

router#

Entering into ROMMON mode from privilege mode. 

router#reload

 

 

 

 

Cisco Router 2800 Series and Cisco Switch 3550 Series Configaration:

 

Ø  Eneble

#show ip rout

# write erase    [ for factory reset]

Enter

# reload

Enter

>enable

# config t

(config)# hostname DTV-Router

(config)#int fa0/0

(config)#ip add 192.168.1.2 255.255.255.0

(config)# ip nat outside

(config)#exit

(config)#int fa 0/1

(config)#ip add 192.168.100.1 255.255.255.0

(config)# ip nat inside

(config)# no shut

(config)#exit

(config)# ip route 0.0.0.0 0.0.0.0 192.168.1.1   [ ISP provided gateway]

(config)# do sh ip route

(config)# exit

# ping 192.168.1.1

# sh ip int bri

# conf t

(config)# ip name-server 8.8.8.8 4.2.2.2

(config)#exit

# ping yahoo.com

 

 

Switch configure:

>enable

#sh ip int brief

# sh vlan

#erase start-config

# delete flash:vlan.dat

#enter

#reload

Ø  Enable

# sh ip int brief

#sh vlan

# config t

(config)#host name DTV-SW1

(config)# int fa 0/48

(config)#no switchport

(config)# ip add 192.168.100.2 255.255.255.0

(config)# no shut

(config)#exit

(config)# ip route 0.0.0.0 0.0.0.0 192.168.100.1

(config)#do ping 192.168.100.1

(config)#vlan 10

(config)#name PC          

(config)# exit

(config)# vlan 20

(config)# name WIFI

(config)# exit

(config)#vlan 30

(config)# name Printer

(config)# exit

# sh vlan

# conf t

(config)# int range fa 0/1-16

(config)# switchport mode access

(config)# switchport access vlan 10

(config)#exit

(config)# int range fa 0/17-32

(config)# switchport mode access

(config)# switchport access vlan 20

(config)# exit

(config)# int range fa 0/33-42

(config)# switchport mode access

(config)#switchport access vlan 30

(config)#exit

(config)#exit

#sh vlan

#conf t

(config)# int vlan 10

(config)# ip add 10.10.10.1 255.255.255.0

(config)# no shut

(config)#exit

(config)# int vlan 20

(config)# ip add 10.10.20.1 255.255.255.0

(config)# no shut

(config)#exit

(config)# int vlan 30

(config)# ip add 10.10.30.1 255.255.255.0

(config)# no shut

(config)#exit

(config)#exit

# sh ip int brief

# conf t

(config)# ip routing   [ for inter vlan routing]

(config)# ip dhcp pool 10

(config)# network 10.10.10.0 255.255.255.0

(config)#default-router 10.10.10.1

(config)# dns-server 8.8.8.8 4.2.2.2

(config)#exit

(config)# ip dhcp pool 20

(config)# network 10.10.20.0 255.255.255.0

(config)#default-router 10.10.20.1

(config)# dns-server 8.8.8.8 4.2.2.2

(config)#exit

(config)# ip dhcp pool 10

(config)# network 10.10.10.0 255.255.255.0

(config)#default-router 10.10.10.1

(config)# dns-server 8.8.8.8 4.2.2.2

(config)#exit

(config)#exit

# sh run

# cp run start

 

Router:

>en

#conf t

(config)# ip route 10.10.10.0 255.255.255.0 192.168.100.2

(config)# ip route 10.10.20.0 255.255.255.0 192.168.100.2

(config)# ip route 10.10.30.0 255.255.255.0 192.168.100.2

(config)# exit

# sh ip rout

# conf t

(config)# ip access-list standard 1

(config)# permit 192.168.100.0 0.0.0.255

(config)# permit 10.10.10.0 0.0.0.255

(config)# permit 10.10.20.0 0.0.0.255

(config)# permit 10.10.30.0 0.0.0.255

(config)# exit

(config)# ip nat inside source list 1 int fa0/0 overload

(config)#exit

# cp run start