Standards

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SDO – Standard Development Organization

ISO – International Organization for standardization

IEC – International Electrotechnical Commission

ITU-T – International Telecommunication Union – Telecommunication

IEEE – Institute of Electrical and Electronics Engineers

ANSI – American National Standard Institute

IANA – Internet Assingned Numbers Authority

Network Address Translation (NAT)

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Network Address Translation (NAT)

  • Static NAT
  • Dynamic NAT
  • PAT or Masquerading (based on port number)

NAT Commands

Static NAT

R1(config)#ip nat inside source static 10.0.0.1 11.0.0.1

R1(config)#ip nat inside source static 10.0.0.2 11.0.0.2

R1(config)#int s0/0

R1(config-if)#ip net outside

 

Dynamic NAT

R1(config)#ip net inside source list 1 pool Sword

R1(config)#ip net pool Sword 11.0.0.1 11.0.0.5 network 255.0.0.0

R1(config)#int s0/0

R1(config-if)#ip net outside

 

PAT

R1(config)#ip net inside source list 1 into s0/0 overload

VLan

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Vlan –

Switch# vlan database

Switch(vlan)#vlan 2 name HR

Switch(vlan)#vlan 3 name IT

Switch#exit

Switch#sh vlan

Switch#conf t

Switch(config)# int fa0/1

Switch(config-if)#switchport mode access

Switch(config-if)#switchport access vlan2

Switch(config-if)#exit

Switch(config)# int fa0/2

Switch(config-if)#switchport mode access

Switch(config-if)#switchport access vlan2

Switch(config-if)#exit

 

Switch# copy running-config  startup-config

 

 

 

 

 

 

Cisco Router Basic Configuration

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Router>en

Router#conf t

Router(config)#int s1/1

Router(config-if)#ip add 13.1.0.2 255.0.0.0

Router(config-if)#no shut

Router(config-if)#exit

Router(config)#int fa0/0

Router(config-if)#ip add 11.1.0.1 255.0.0.0

Router(config-if)#no shut

Router(config-if)#exit

Router# sh ip int brief

Router#hostname R2

R2(config)#int s1/0

R2(config-if)#clock rate 64000

R2(config-if)#no shut

R2(config-if)#exit

 

Static

R1(conf)#ip route 11.0.0.0 255.0.0.0   13.1.0.2

R1(conf)#ip route 12.0.0.0 255.0.0.0   13.1.0.2

R1(conf)#ip route 14.0.0.0 255.0.0.0   13.1.0.2

 

RIP

R1(conf)#Router rip

R1(conf-rip)#network 10.0.0.0

R1(conf-rip)#network 13.0.0.0

 

EIGRP

R1(conf)#Router eigrp Autnomous number (5)

R1(conf)#Router eigrp

R1(conf-rip)#network 10.0.0.0

R1(conf-rip)#network 13.0.0.0

 

OSPF

R1(conf)#router ospf 2 (process ID any)

R1(conf)#network 10.1.0.1 0.255.255.255 area 0

R1(conf)#network 13.1.0.1 0.255.255.255 area 0

Default

R1(conf)#ip route 0.0.0.0 0.0.0.0  13.1.0.2

 

 

 

 

 

 

 

 

 

Android Phone secret codes

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  1. Complete Information About your PhoneDial this number/code: *#*#4636#*#*It gives you information about your phone and battery including,- Phone information
    – Battery information
    – Battery history
    – Usage statistics

    2. Factory data reset

    The following number/code will be used: *#*#7780#*#*

    Dialing this code will give you a prompt that will have the ‘Reset phone’ button. If you don’t want to reset, then press cancel. If you choose to reset then the following data is removed,

    – Google account settings
    – System and application data and settings
    – Downloaded applications

    The following data is not removed:

    – Current system software and bundled application
    – Files on your SD card, like photos, music etc.

    3. Format Android Phone

    Number/code: *2767*3855#

    This code formats your Android device, so do it only if absolutely necessary. The code is used in order to perform a factory format on your device and removes all settings and files, including the internal memory storage. It reinstalls the phone’s firmware and there is no way to cancel this operation, except removing the battery from the device.

    4. Phone Camera Update

    Number/code: *#*#34971539#*#*

    This code will give you information about the camera on your phone. The following four menus are shown,

    – Update camera firmware in image
    – Update camera firmware in SD card
    – Camera firmware version
    – Firmware update count

    Using the ‘Update camera firmware in image’ option has been known to make your camera stop working, so it is advisable to not choose that option.

    5. End Call/Power

    Number/code: *#*#7594#*#*

    This code allows you to manipulate the function of the power on/off/lock button on your smartphone. Instead of getting the options for silent mode etc. you can choose to make it turn off the power directly.

    6. File Copy for Creating Backup

    Number/code: *#*#273283*255*663282*#*#*

    This is a very useful code that lets you backup your images, media files, video, voice memo etc. You will get a file copy screen allowing you to backup images.

    7. Service Mode

    Number/code: *#*#197328640#*#*

    The idea behind entering the Service Mode is that you can run various tests on your device using this.

    8. WLAN, GPS and Bluetooth Test Codes:

    There are various codes that you can use for this one.

    – *#*#232338#*#* – Shows WiFi MAC Address

    – *#*#1472365#*#* – GPS Test

    – *#*#1575#*#* – Another GPS Test

    – *#*#232331#*#* – Bluetooth Test

    – *#*#232337#*# – Shows Bluetooth Device Address

    9. Codes to get Firmware version information:

    The following codes provide the firmware information about your device.

    – *#*#4986*2650468#*#* – PDA, Phone, H/W, RFCallDate

    – *#*#1234#*#* – PDA and Phone

    – *#*#1111#*#* – FTA SW Version

    – *#*#2222#*#* – FTA HW Version

    – *#*#44336#*#* – PDA, Phone, CSC, Build Time, Changelist number

    10. Codes to launch various Factory Tests:

    There are various other factory tests that you can run on a smartphone.

    – *#*#0283#*#* – Packet Loopback

    – *#*#0*#*#* – LCD test

    – *#*#0673#*#* OR *#*#0289#*#* – Melody test

    – *#*#0842#*#* – Device test (Vibration test and BackLight test)

    – *#*#2663#*#* – Touch screen version

    – *#*#2664#*#* – Touch screen test

    – *#*#0588#*#* – Proximity sensor test

    – *#*#3264#*#* – RAM version