Contents:
l What is the public ip address?
Private IP and Public IP address
public IP address range
How to find your public IP address
dynamic ip
hide your public IP address
What is the public ip address?
Public IP address is the IP address of your home or business router received from your ISP. Any publicly accessible network hardware will require public IP address, such as home routers and servers hosting websites.
Public IP address is different from all devices inserted at the public Internet. Each of devices to access the Internet using a unique IP address. In fact, public IP addresses are sometimes referred to as Internet IP.
This is every Internet service provider for forwarding the request to the Internet address of a particular home or business, as transport tools how to use your actual address will be forwarded to your home in the same package.
Your public IP addresses as any other address you own. For example, your e-mail address and home address to you is completely unique, which is why these addresses to send mail to make sure they can find your true and not someone else.
The same applies to the exclusivity of your IP address, so your digital request will be sent to your network, rather than someone else's.
Private IP and Public IP addresses
A private IP address, in many respects, the same thing as a public IP address. It is the only device identifiers for all devices behind a router or other providers of IP addresses.
However, with public IP addresses, devices in the home can have exactly the same equipment with a neighbor private IP addresses, can also have any other device in the world. This is because a private address is not routable - a hardware device on the Internet, are programmed to prevent the apparatus having a private IP address, IP communication with other than direct them to the router connected to any.
Since these private addresses can not be limited access to the Internet, so you need an address to reach other parts of the world, which is why the public IP address needs. This type of setting all devices in the home network using only one address (public IP addresses) to pass information back and forth between the router and the ISP.
Another way to look at this is that the home routers as your own Internet service provider. When your router to provide private IP addresses for the private behind a router device to connect to your ISP will provide the public IP address to connect to the public Internet devices.
Private and public addresses are used for communication, but the communication based on the address range used is restricted.
When you try to open a Web site from a computer, the request is sent as a private IP address from your computer to the router, then your router will be assigned to your network using the public IP address of the requesting site from your ISP. Once the request is completed, the operation will be reversed - ISP sends the Web site address to your router, the router forwards the address to ask its computer.
Public IP address range
Some IP addresses are reserved for public use, the other IP addresses for private use. This enables private IP address can not reach the public Internet, because unless they are located behind a router, otherwise they can not even communicate properly.
Internet Assigned Numbers Authority (IANA) reserves the private IPv4 address range to be used as:
• 10.0.0.0 to 10.255.255.255
• 172.16.0.0 to 172.31.255.255
• 192.168.0.0 to 192.168.255.255
exclude the above address, public IP address range 1-191.
All 192.xxx addresses none of the publicly registered, which means they can only be used as a private IP address behind a router. This range is the cause of most of the decline in private IP address, which is the default IP address of the most Linksys, D-Link, Cisco and NETGEAR router is the IP of this collection of reasons.
IPv6 address space is so large, that it does not require private IP. However, there is a special unique unicast IP range fc00 :: / 7. But this is still scope is global.
How to find your public IP address
You do not need most of the time to know your public IP address, but in some cases, it is important and even necessary, such as when you need to access your network or computer which is away from home or your business.
The most basic example of this is when you use the remote access program. For example, if you are in Shanghai's hotel room, but need to "remote" to your home computer, you need to know the IP address of the IP address can be accessed via the Internet (public) your home router is being used), so you can indicate that the software to connect to the correct position.
Find your public IP address very easily. In fact, you can use our own Lifewire system information tools to easily view your content:
Although it is better to use our tools as simple as click, but you can usually find your public IP router's administration page through. If you do not know what that is, it is usually your default gateway IP address.
Suppose you reason for remote access to information and after that, capture the two methods is that you need to do this from a home computer / device. If you have left, you have to have a friend or colleague do it for you. You can also use the DDNS service, and some are even free. No-IP is one example, but there are other examples.
Dynamic ip
Most public IP address will change. Any type of IP address will change, called a dynamic IP address.
When the ISP is a new phenomenon, the user will only connect to the Internet in a very short period of time, and then disconnect. Then, IP addresses being used by a customer will need to be another IP address to connect to the Internet open.
This approach means that the IP address assigned ISP does not need to buy such a large number of IP addresses. Even though most of us are always connected to the Internet, this process is still in general use.
However, most web hosting site has a static IP address, because they want to ensure that users can continue to access their servers. It has changed the IP address would defeat the object, because once the IP changes, DNS records, you need to update, which may lead to unnecessary downtime.
On the other hand, almost always home network is assigned a dynamic IP address, the opposite reason. If your ISP provides the same address for your network, it may be more likely to be home client hosting site abuse, or *** over and over again might try to use the same IP address until they disrupt your network.
This is why a static IP address than having a dynamic IP address of the reason is more expensive. We mentioned before DDNS service in a way to solve this problem.
Another reason most networks have a public IP address changes because of the static IP address requires more management, it is often cost more than the customer has a dynamic IP address.
For example, if you want to move to a new location a few kilometers away, but use the same ISP, and then assign dynamic IP addresses only means that you will get another IP address that can be obtained from the address pool. Using a static network address must be reconfigured to apply to its new location.
Hide your public IP address
you can not hide your public IP address from the ISP, because all your traffic must pass before they reach any other content on the Internet. However, you can filter all data through a virtual private network (VN), hide your IP address and encrypts all data transmissions (to hide the traffic from the ISP) from the site you visit.
For example, suppose you want to hide your IP address from Google. Normally, when accessing Google's website, they can see your public IP address is a specific request to view their website. Quick Search above from one IP lookup website will tell them who your ISP yes. Since your ISP has assigned to you know the IP address, specifically, this means that you can be fixed directly to your access to Google's.
Before you open Google site, using V N service will add another ISP at the end of your request.
Once connected to V N, occurs with the same procedure as above, only this time, instead of Google see your ISP assigned you the IP address, they will see the VN assigned IP address. *