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What is the difference between public and private ip addresses

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Hi Sravi, I posted this just now on another post but here it is in case you need it.

Private IP addresses
are used either to hide systems from the public Internet or to provide an additional range of addresses to organizations that do not have sufficient public IP addresses to distribute on their network. Organizations can use these numbers to assign internal IP addresses without having to worry about an IP address conflict or having to obtain a new block of IP addresses.
If you connect to the Internet as a home user with a residential router, you will typically benefit from this arrangement. Although you may be paying for only one IP address through your Internet service provider (ISP), you can have unlimited devices connected to the Internet.
For example lets say you live in an apartment complex with only one mailbox. all the apartments have numbers but no matter what all the incoming and outgoing traffic goes to that one mailbox.

I hope this helps.

Posted on Nov 13, 2008

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Stellyx
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SOURCE: what is the difference between public & private addresses

Private IP addresses are used either to hide systems from the public Internet or to provide an additional range of addresses to organizations that do not have sufficient public IP addresses to distribute on their network. Organizations can use these numbers to assign internal IP addresses without having to worry about an IP address conflict or having to obtain a new block of IP addresses.
If you connect to the Internet as a home user with a residential router, you will typically benefit from this arrangement. Although you may be paying for only one IP address through your Internet service provider (ISP), you can have unlimited devices connected to the Internet.
For example lets say you live in an apartment complex with only one mailbox. all the apartments have numbers but no matter what all the incoming and outgoing traffic goes to that one mailbox.

I hope this helps.

Posted on Nov 13, 2008

6ya6ya
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Posted on Jan 02, 2017

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Can someone show me how to change my Dell lattitude e5520 ip address?


Your IP address is assigned by your network system.

If you have a conflict with your IP, you can try a ipconfig /release or ipconfig /renew.


At the command prompt type
ipconfig /? for all available switches.

If you are using a cable modem, you would want to reset to factory first.

May 03, 2014 | Office Equipment & Supplies

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Ip location


no. An IP address refers to an address that is attached to your network card (or your router). In most cases you will have what is considered a "Private" address (there is a range of addresses reserved for people to use in their private networks so that they don't get confused for things on the internet). So your computer will have a "private" address if you are behind a firewall, router, or internet service provider. You may be looking for your "public" address which would not allow someone to get to your computer from the internet, unless you had "port forwarding" set up in your router. Public addresses usually do not stick to your cable modem or dsl modem, and may change over time. If you need to figure out what your current Public IP address is you will want to go to google and type "what's my ip address" in the search, and it will show you (as well as some links to other web sites that will tell you what your IP address is). If you need to find your private IP address so that other computers on your private network can communicate with you, open the command prompt and type "ipconfg /all" and hit enter. This will give you a list of different adapters that you have on your computer, and what the IP Address is for each (you may have wireless, hard wired, even vpn adapters). The email address that is transmitted in the headers of your email is the public IP address of your mail server (or googles, or yahoos, or whatever your mail provider is).
Hope this helps.

Feb 04, 2014 | Computers & Internet

2 Answers

192.168.0.1


Try this.
http://192.168.0.1

Mar 14, 2013 | Computers & Internet

4 Answers

How to find a IP address for my emachines laptop


go to start -- run and type in CMD
hit enter to open a black command prompt window

type in "ipconfig" without the quotes and hit enter. This will give you your IP address.

If you need the IP address from your provider that you are using out on the public internet, just go to http://whatismyipaddress.com/ and it will tell you what your external public IP address is.

Mar 06, 2013 | E-Machines eMachines Desktop PC

1 Answer

How do i forward a port i want to play call of duty black ops but i cant find an online game, the game website says to forward these ports, TCP [80] UDP [88, 3074, 22728, 33233] but i dont know how to...


http://www.netopia.com/support/hardware/technotes/NQG_025.html
Server List (Port Forwarding) NQG_025 With NAT enabled, the IP addresses of nodes on your LAN are private since they are hidden from the Internet. IP Servers let you pass specific types of network traffic through the Netopia router's NAT interfaces. Once configured, selected types of network traffic, such as FTP requests or HTTP (Web) connections, will be forwarded to a specific host or server behind the Netopia router. Please Note: From the LAN (Local Area Network), you will also be able to access the servers that are responding to requests from the internet, but only using the internal private IP address. Access via the public IP address is not supported from a local ethernet connection. If your ISP is routing you multiple public IP addresses, you can also configure the router to forward all ports in one public IP to a designated private IP address on your LAN via Easy PAT List entries. For those instructions, see Quick Guide NQG_024: IP Mapping (Address Forwarding).
Please Note: If your router is currently running Netopia Residential Firmware with a web "GUI" configuration menu, this technote is not applicable to you. Most 3300 Series Netopia Gateways can be upgraded to Enterprise level firmware. Click Here! to purchase the upgrade key.
Related documents: NQG_039 NAT and the Basic Firewall
Firmware References:
  • v8.2 R1 (and up) - 3300 Enterprise Series
  • v5.3.7 (and up) - 4000 Series
  • v4.8.2 (and up) - R-Series

Before You Start
Telnet into the Netopia router's Main Menu at 192.168.1.1 (if using the default IP setting). If your network has a different IP addressing scheme, modify this accordingly. Click Here! for instructions on using telnet and Hyperterminal (serial connection).
Login with the user name and password. The Superuser login is required to save changes. If you are unsure of this, contact your network administrator.
Don't forget to press the Enter key to save any entries. Hitting the back space, delete or tab without first hitting enter will undo any changes.
The Esc key will take you back towards the main menu screen.
Once you have completed your configuration, you should reboot the Netopia to save and apply your changes.

home_telnet.gif
The Netopia Main Menu Interface

Server List Configuration

  1. From the Main Menu of router console screens, go to Quick Menus, and select Network Address Translation.
  2. Select Show/Change Server List.
  3. Select Easy-Servers.
  4. From the Show/Change NAT Server List screen, select Add Server.
  5. Select Service and the service and port you want to allow. If your service and port are not available in the pull-down menu, select Other. Selecting Other will allow you to enter a specific service port or a range of ports since fields are provided for both a First Port Number and a Last Port Number. To allow a specific service port, the First Port Number and Last Port Number should be the same. Select Okay.
  6. Next, enter the Server Private IP Address, or the private IP address of the host/server you are forwarding the service to, and the Public IP Address you want to associate with the same host/server. This value can be left set to 0.0.0.0 if you are using the WAN IP as the Public IP address. Note: If your ISP is routing you multiple static IP addresses, other then the one used for Internet access, you may create more than one server for specific service as long as all servers have a different Public IP Address specified. For example, with two web servers on your LAN you would need to create two Server List entries for TCP 80 (www-http). Since each specific port (service) can only be mapped once using any given Public IP Address, a distinct public address must be used for each TCP 80 server list entry. It is not necessary for you to specify more than one Local WAN IP Address or Public IP Address in your router's configuration. As long as you are connecting to your ISP via a public IP address used for NAT, they are responsible for routing all other IP addresses via that connection.

Conclusion
You have now configured your router for TCP/UDP port forwarding. If you have a switched connection (ISDN or Analog), you will need to either disconnect and reconnect your Internet connection, or restart your router for the Nat Server List changes to take effect. If you wish to filter traffic for your static IP mappings, please see the following Netopia Technote:
NQG_039: NAT and the Basic Firewall

Nov 12, 2010 | Netopia CAYMAN 3387W-ENT CABLE/DSL...

1 Answer

Brother MFC 8860 has ip conflict. How do I resolve this? The issue is that the IP address is different on my computer versus the printer and thus doesn't allow them to connect. Greg


Each IP-address on a network (private in your home, or public on the Internet) must be unique; hence "IP conflict" when two devices (computers or printers or iPod Touch) try to "claim" the same IP-address.

If you have configured a "static" IP-address into the printer, change it to an IP-address that is *NOT* used on your network.

Or, find the computer on your network that is using the same IP-address as your printer, and change its IP-address and reboot it.

In order to connect, your computer and your computer *MUST* have *DIFFERENT* IP-addresses.

Sep 10, 2009 | Brother MFC-8860DN Printer

1 Answer

What is the difference between public & private addresses


Private IP addresses are used either to hide systems from the public Internet or to provide an additional range of addresses to organizations that do not have sufficient public IP addresses to distribute on their network. Organizations can use these numbers to assign internal IP addresses without having to worry about an IP address conflict or having to obtain a new block of IP addresses.
If you connect to the Internet as a home user with a residential router, you will typically benefit from this arrangement. Although you may be paying for only one IP address through your Internet service provider (ISP), you can have unlimited devices connected to the Internet.
For example lets say you live in an apartment complex with only one mailbox. all the apartments have numbers but no matter what all the incoming and outgoing traffic goes to that one mailbox.

I hope this helps.

Nov 13, 2008 | Microsoft Windows Server Standard 2003 for...

1 Answer

Paradyne 6218-12-200 won't connect all computers


A public IP address is usually assigned to the WAN port (outside/public side), which is how your router is conected to your Internet provider service.

A private IP is always assigned to the private network side (LAN = Inside). Unless you are hard coding your IP addressing on each of your devices, you will need to have DHCP enabled in your router with enough user IPs for your devices (more than 1).

Apr 11, 2008 | Paradyne (6218-A1-200) Wireless Router...

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