Switching Technology Commnds
Cisco Router & Switch Ether-Channel
Router
......
int port-channel 1
no shutdown
exit
int fa0/0
channel-group 1
no shutdown
exit
int fa0/1
channel-group 1
no shutdown
exit
int port-channel 1
ip add 192.168.1.1 255.255.255.0
no shutdown.
exit
Switch
......
int range fa0/1-2
channel-group 1 mode on
exit
int port-channel 1
exit
Layer 2 Switch To Switch Ether-channel
Switch1
........
interface range fa0/1-2
channel-group 1 mode active
Switch2
.......
interface range fa0/1-2
channel-group 1 mode passive
How To Ether-Channel Checking
.............................
show etherchannel summary
show etherchannel detail
show etherchannel port-channel
L3 Etherchannel Multilayer Switch
Switch1
........
int fa0/1
no switchport
ip address 10.10.10.1 255.255.255.0
no shutdown
exit
hostname sw1
int portchannel 1
no switchport
ip address 172.16.1.1 255.255.255.0
no shutdown
exit
int range fa0/2-3
no switchport
channel-group 1 mode active
Switch2
........
int fa0/1
no switchport
ip address 11.11.11.1 255.255.255.0
no shutdown
exit
hostname sw2
int portchannel 1
no switchport
ip address 172.16.2.1 255.255.255.0
no shutdown
exit
int range fa0/2-3
no switchport
channel-group 1 mode passive
Router To Router Ether-channel
Router1
int port-channel 1
no shutdown
exit
int fa0/0
channel-group 1
no shutdown
exit
int fa0/1
channel-group 1
no shutdown
exit
int port-channel 1
ip add 192.168.1.1 255.255.255.0
no shutdown.
exit
Router2
int port-channel 1
no shutdown
exit
int fa0/0
channel-group 1
no shutdown
exit
int fa0/1
channel-group 1
no shutdown
exit
int port-channel 1
ip add 192.168.1.1 255.255.255.0
no shutdown
exit
Configuring VLANs on Cisco Switches
Creating the VLAN in the VLAN Database Switch1
vlan 10
name RED
exit
vlan 20
name ORANGE
exit
vlan 30
name BLUE
exit
Assigning the Switchport to a VLAN
..................................
interface Ethernet 0/2
switchport mode access
switchport access vlan 10
exit
interface Ethernet 0/3
switchport mode access
switchport access vlan 30
exit
Creating a trunk port
.....................
interface Ethernet 2/1
switchport trunk encapsulation dot1q
switchport mode trunk
exit
interface Ethernet 2/2
switchport trunk encapsulation dot1q
switchport mode trunk
exit
To set the Native VLAN Untag Traffic
interface Ethernet 2/1
switchport trunk native vlan 3
exit
interface Ethernet 2/2
switchport trunk native vlan 3
exit
Allowed VLAN List
.................
interface Ethernet 2/1
switchport trunk allowed vlan 10,20
switchport trunk allowed vlan 20
switchport trunk allowed vlan add 30
interface Ethernet1/1
switchport trunk allowed vlan remove 20
interface Ethernet1/1
no switchport trunk allowed vlan
Show Commnd
Switch
.......
show vlan brief <Check VLAN>
show interfaces trunk <Check Trunk Port>
show interfaces switchport
show interfaces status
show spanning-tree
Router
.......
show startup-config
show running-config
show clock
show hosts
show users
show arp
show protocols
show history
show ip route
show version
show ipv6 route
show interfaces
show interfaces gigabitEthernet 0/0
show ip interface brief
show ipv6 interface brief
show cdp neighbors
show ntp status
show Flash:
show logging
show access-lists
show ip dhcp binding
show ip dhcp pool
show ip eigrp neighbors
show ip ospf neighbor
show ip nat translations
show standby
show mac address-table
show spanning tree summary
show etherchannel
show vlan
show vtp status
show port-security
show monitor session all
show interfaces status
show interfaces switchport
show interfaces trunk
...Switching Commnd...
To log into global configuration mode
.....................................
configure terminal
To log into the privileged exec mode
....................................
enable
To reboot the switch
....................
reload
To set the hostname
...................
hostname Sw1
To merge the startup configuration with the configuration in memory
..................................................................
Copy startup-config running-config
To replace and Save the startup configuration with the startup configuration
............................................................................
Copy running-config startup-config
To display startup configuration which is activated when device starts
......................................................................
show startup-config
To display current configuration
................................
show running-config
shut the interface
..................
int fa0/1
shutdown
bring up the interface
......................
int fa0/1
no shutdown
To display the status of a network interface and its IP configurations
......................................................................
show ip interface 0/0
To show the MAC address table
.............................
show mac address-table
To display information about interface
......................................
show interfaces
To display interface line status
................................
show interface status
To display configuration settings and operational status
........................................................
show interfaces switchport
To see if CDP is enabled
........................
show cdp
To list summary of each neighbor connected
..........................................
show cdp neighbors[detail]
To list every VLAN and its assigned interface
.............................................
show vlan
show vlan brief
To display information about security configured on the interface>
.................................................................
show port security [interface interface-id]
Inter VLAN Routing by Layer 3 Switch
Creating VLANs on layer 3 switches namely VLAN 2 on the
switch ports fa0/1, 2 and fa0/3, 4 for VLAN 3.
........................................................
Switch# vlan 2
Switch# vlan 3
Switch# int range fa0/1-2
Switch# switchport access vlan 2
Switch# int range fa0/3-4
Switch# switchport access vlan 3
Creating SVI for VLAN 2 giving it IP address 192.168.1.1/24 and SVI for
VLAN 3 giving IP address 192.168.2.1/24
.......................................................................
Switch# ip routing
Switch# int vlan 2
Switch# ip address 192.168.1.1 255.255.255.0
Switch# int vlan 3
Switch# ip address 192.168.2.1 255.255.255.0
Intervlan Routing Configuration For Router
Router Connect to L2 Switch This Diagram
.........................................
config t
interface fa0/0.10 <VLAN ID 10 Subinterfaces >
encapsulation dot1q 10
ip address 10.10.10.1 255.255.255.0
no shutdown
exit
config t
interface fa0/0.20
encapsulation dot1q 20
ip address 10.10.20.1 255.255.255.0
no shutdown
exit
config t
interface fa0/0.30
encapsulation dot1q 30
ip address 10.10.30.1 255.255.255.0
no shutdown
exit
Connect Cisco Router & Switch to Internet
Cisco switches and routers are vital components of the network architecture. Switches are responsible for transferring data within a LAN, while routers are responsible for transferring data between different networks. Configuring these devices is one of the key steps in building a stable and efficient network
Router Interface Configuration
..............................
show ip interface breif
config t
interface fa0/0
ip address dhcp
no shutdown
exit
Default Routing Configuration
............................
config t
ip route 0.0.0.0 0.0.0.0 192.168.1.1
Intervlan Routing Configuration For Router
.........................................
config t
interface fa0/0.10 <VLAN ID 10 Subinterfaces >
encapsulation dot1q 10
ip address 10.10.10.1 255.255.255.0
no shutdown
exit
config t
interface fa0/0.20
encapsulation dot1q 20
ip address 10.10.20.1 255.255.255.0
no shutdown
exit
config t
interface fa0/0.30
encapsulation dot1q 30
ip address 10.10.30.1 255.255.255.0
no shutdown
exit
DHCP Server Configuration For Router
...................................
config t
ip dhcp pool 10 <For VLAN 10>
network 10.10.10.0 255.255.255.0
default router 10.10.10.1
dns-server 8.8.8.8
exit
config t
ip dhcp pool 20
network 10.10.20.0 255.255.255.0
default router 10.10.20.1
dns-server 8.8.8.8
exit
config t
ip dhcp pool 30
network 10.10.30.0 255.255.255.0
default router 10.10.30.1
dns-server 8.8.8.8
exit
NAT Configuration For Router
............................
config t
interface fa0/1 <WAN Interface Outside>
ip nat outside
exit
interface fa0/0.10 <Inside LAN Subinterfaces>
ip nat inside
exit
interface fa0/0.20
ip nat inside
exit
interface fa0/0.30
ip nat inside
exit
ACL Configuration
.................
ip access-list standard local
permit 10.10.10.0 0.0.0.255
permit 10.10.20.0 0.0.0.255
permit 10.10.30.0 0.0.0.255
exit
ip nat inside source list local interfaces fa0/1 overload
Switch Configuartion For Trunking Multiple VLAN TAG Carry
.........................................................
config t
interface gig/48
switchport mode trunk
no shutdown
show interface trunk
VLAN Configuration For Switch
............................
Create VLAN
config t
vlan 10
name HR
no shut
exit
vlan 20
name IT
no shut
exit
vlan 30
name Sales
no shut
exit
show vlan
Assign Port For VLAN
....................
interface range 0/1-16
switchport mode acces
switchport access vlan 10
interface range 0/17-20
switchport mode acces
switchport access vlan 20
interface range 0/21-25
switchport mode acces
switchport access vlan 30
[All Configuration Done]
Telnet & SSH & Basic Configuration
Configuring Enable Mode Password Router
....................................
enable password 123
enable secret cisco
Router & Switch Usermode Password Protected
............................................
line console 0
password 123
login
exit
service password-encryption <MD5 Encrption
Configuring Telnet Authentication Router & Switch
...............................................
line vty 0 4
password cisco
login
Configuring Local Telnet Authentication Router & Switch
...................................................
username admin password cisco
line vty 0 4
login local
Configuring SSH Authentication Router And Switch
.............................................
username ali password 123
ip domain-name ksa.com
crypto key generate RSA
line vty 0 4
login local
transport input ssh
SSH Access Any PC CMD Commnd
............................
ssh -l ali 192.168.1.1
Telnet Access Any PC CMD Commnd
...............................
telnet 192.168.1.1
Password Encryption Router & Switch
................................
service password-encryption
enable password cisco
no service password-encryption
Login Banner Router & Switch
..........................
banner login $ Login Message $
banner motd & Message here &
VTP Configuration
Switch1
.......
vtp mode server
vtp domain saikat
vtp password cisco
Switch2
.......
vtp mode client
vtp domain saikat
vtp password cisco
Switch3
.......
vtp mode client
vtp domain saikat
vtp password cisco
Switch#show vtp status
VTP Version : 2
Configuration Revision : 3
Maximum VLANs supported locally : 255
Number of existing VLANs : 7
VTP Operating Mode : Client
VTP Domain Name : study-ccna
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x82 0xA7 0xF2 0x89 0x5F 0xC3 0x98 0x52
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Vtp Transparent Configure
.........................
vtp mode transparent
How To Backup Switch Configuration
Switch Factory Reset
....................
erase startup-config
show version
show flash
copy running-config tftp:
copy tftp: startup-config
Switch Configuration Backup
...........................
copy runnig-config tftp:
Address remote host 192.168.1.100
Destination filename enter
Switch Configuration Restore
............................
copy tftp: runnig config
Address remote host 192.168.1.100
Source filename Itindex-confg
Destination filename enter