it's helpful student for it.

1. ভিভিন্ন DEVISE AND AR PORT NUMBER
HTTP=80
HTTPS=443
FTP=20-21
TFTP=169
SSH=23
TELNET=22
DNS=53
DHCP=67
SMTP=25
POP3=110
IMAP=143
SWITCH CONFIGURATION (TELNET)
Switch>enable
Switch#configuration terminal
Switch(config)#
Host name & password Setting
Switch(config)#hostnamesa
sa(config)#enable secret cisco

2. sa(config)#line con 0
sa(config-line)#password cisco
sa(config-line)#login
sa(config-line)#exit
sa#wr
Switch IP configuration
sa(config)#interface vlan 1
sa(config)#ip address 192.168.1.100 255.255.255.0
sa(config)# no shartdown
sa#wr
Setting up Banner
sa(config)#banner motd $ Wellcome to the Desktop IT $
sa(config)#exit
sa#wr
Telnet Configuration
sa(config-line)#line vty 0 4
sa(config-line)#password cisco

3. sa(config-line)#login
sa(config-line)#exit
sa#wr
VLAN & Trunk
sa#configuration terminal
sa(config)#vlan 10
sa(config-vlan)#name Red
sa(config-vlan)#exit
sa(config)#vlan 20
sa(config-vlan)#name Black
sa(config)#vlan Green
sa(config-vlan)#name Green
sa(config)#interface range fa0/1-7
sa(config-if-range)#switchport access vlan 10
sa(config)#interface range fa0/8-15
sa(config-if-range)#switchport access vlan 20
sa (config)#interface range fa0/16-23

4. sa (config-if-range)#switchport access vlan 30
sa (config-if-range)#exit
sa (config)#interface fa0/24
sa (config-if)#switchport mode trunk
sa (config)#end
sa#wr
Router configrtion (ROUTE)
#configration terminal
#interface fastethernet 0/0
#ipaddress withnetmask
#no shutdown
#exit
#Interface fastethernet 0/1
#ipaddress withnetmask
#no shutdown
#exit
#interface serial 0/0/0
#clock rate 64000
#ipaddress withnetmask
#no shutdown
#exit

5. #ip route (defultnetwork subnetmask and other network)
#end
#wr
#ROUTER RIP#
#configration terminal
#interface fastether 0/0
#ipaddress withnetmask
#no shutdown
#exit
#interface fastethernet 0/1
#ipaddress withnetmask
#no shutdown
#exit
#interface seriel 0/0/0
#ipaddress withnetmask
#no shutdown
#exit
#router rip
#version 2
#every defult network

6. #every defult network
#every defult network
#end
#wr
#ROUTER EIGRP#
#configration terminal
#interface fastether 0/0
#ipaddress withnetmask
#no shutdown
#exit
#interface fastethernet 0/1
#ipaddress withnetmask
#no shutdown
#exit
#interface seriel 0/0/0
#ipaddress withnetmask
#no shutdown
#exit
#router eigro 100
#no auto summary

7. #every defult network
#every defult network
#every defult network
#end
#wr
#ROUTER OSPF#
#configration terminal
#interface fastether 0/0
#ipaddress withnetmask
#no shutdown
#exit
#interface fastethernet 0/1
#ip address with netmask
#no shutdown
#exit
#interface seriel 0/0/0
#ipaddress withnetmask
#no shutdown
#exit
#router ospf 200
#every defultnetwork area 0

8. #every defultnetwork area 0
#every defultnetwork area 0
#end
#wr
#ROUTER DHCP#
#configration terminal
#ipdhcppool (name)
#defultnetwork andnetmask
#defult-router(mean:defltgetway)
#dns-server with network
#exit
#ipdhcp exclude-address (exp:1-11)
#ipdhcp exclude-address (dns –server address)
#interfaacefastethernet 0/0
#ip address with netmask
#no shutdown
#end
#wr
#NAT PAT#
#configration terminal

9. #interface fastether 0/0
#ipaddress withnetmask
#no shutdown
#exit
#interface fastethernet 0/1
#ip address with netmask
#no shutdown
#exit
#inerfacefastethernet 0/0
#ipnat inside
#exit
#interface fastethernet 0/1
#ipnat outside
#ip route (0.0.0.0 0.0.0.0fa 0/0)don’t know
#ipnat pool desktop (network add inside and outside with netmask)
#acess list 1 permit (defultnetwork withwellcut mask)
#ipnat inside source list 1pool desktop overload
#end
#wr
(Other router just interface)and save
#ACL#

10. #access list 100 deny tcphost network(192.168.10.2) host
network(192.168.11.40) port name or number (exp:40 eq www)
#access list 100 deny tcp host network (192.168.10.2) host network
(192.168.11.22)eq 22
#access list 100 deny permit ip any any
#ip access group 100 in
#end
#wr
#CABLEING#
#Straight through cabling#
১।কমলাসাদা(orange-white )
২।কমলা (orange)
৩।ভসিুজসাদা (green-white)
৪।নীল (blue)
৫।নীলসাদা(blue-white)
৬।সিিুজ(green)
৭।িাদামীসাদা (brown-white)
৮।িাদামী (brown)
#corrsecableing#

11. ১।সিিুজ সাদা (green-white)
২।সিিুজ (green)

12. ৩।কমলাসাদা (orange-white)
৪।নীল(blue)
৫।নীলসাদা(blue-white)
৬।কমলা(orange)
৭।িাদামীসাদা(brown-white)
৮।িাদাভম(brown)
INTER VLAN
#Interfacefast ethernet 0/0.10
# encapsulation dot1q 10
#ip address with sub net musk
#exit
# Interfacefast ethernet 0/0.20
# encapsulation dot1q 20
# ip address with sub net musk
#exit
#other interface 0/0.other
# encapsulation dot1q other
# ip address with sub net musk
#exit