How to Change a Network Address

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The network address, or IP address, is a numerical value used by computers to identify and communicate with each other. The network address is assigned by a server or entered by the user. You will need administrative rights on the computer for which you want to change the network address.

Windows Static

  • Go to the "Start" menu and select "Control Panel."

  • Go to "Network Connections" and right-click on the network card whose network address you want to change. Select "Properties."

  • Highlight "Internet Protocol (TCP/IP) and click"Properties."

  • Enter your new network address in the "IP address" field.

  • Click "OK" to activate the new address.

Windows DHCP

Linux Static

  • Open a Terminal. If you are not "root" or don't have rights to the network system, type "su" and press "Enter," then type the root or superuser password.

  • Type "vi etc/sysconfig/networking/devices/ifcfg-XXX" where XXX is the network device you want to modify.

  • Press "a" and navigate to the line "IPADDR." Change the network address.

  • Press "!", then "wq" and press "Enter."

  • Type "ifdown XXX & ifup XXX" to activate the new network address.

Linux DHCP

  • Open a Terminal. If necessary, type "su" and press "Enter," then type the root or superuser password.

  • Type "ifdown XXX" where XXX is the network interface for which you want to renew the network address.

  • Type "ifup XXX" to get a new network address.

Tips & Warnings

  • "ifconfig" (case sensitive) is the command that displays all the network cards and their assigned network addresses in Linux. "Ipconfig" does the same in Windows.
  • Do not change the network address using a type of remote terminal or remote desktop as any mistake could cut that connection and prevent you from fixing the mistake.

References

  • Photo Credit DSL Modem Detail image by Rob Hill from Fotolia.com
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