How to know whether the IP is public or private. Do you want to clearly understand and understand whether the address assigned by the operator is a public address or a private address? The steps to follow are actually accessible to everyone and are very easy to follow.
How to gradually understand whether an IP is public or private
The difference between public IP and private IP
Before explaining how to know the IP is public or private , I need to let you know the difference between these two types of network addresses.
We all know the IP address that identifies a network-connected device (either a PC, mobile phone , tablet or any other device connected).
According to the type of network, at least three types of IP addresses can be distinguished: public , personal y personal provided by the telephone operator .
The characteristics of each of these IP “family” are listed below.
Public IP – This is the IP address of the device used in the network that is to say, you can access it from any other Internet node.
Local private IP – the IP address of the device arrives recognized in the local network . For example, if you think of a classic home network the private IP address is a router connected to it by a generation of all devices connected to the network. These devices only use the public IP normally associated with the router to communicate with the outside: the public IP can be shared because the internal communication is properly managed by the router, and the router knows exactly which device “hijacked” the received data packet. In terminology, this mechanism is called NAT (o network address translation ). Unless you have defined precise routing rules (usually called “opening the door”) through the router’s internal mechanism, you will usually not be able to access the local private IP from the outside.
Operators to provide private IP – the mechanism behind the IP category similar to those seen now, but with one big difference: the “local” network in question is a user-created for all operators from a particular phone . In practice, this means that certain service providers will create huge private networks: each node of these networks coincides with an active user who is assigned a specific IP address. These addresses can communicate with the outside world using only public IPs with the help of the NAT mechanism. The use of the public address or private address provided by the operator has nothing to do with the simple purpose of browsing the Internet, but it becomes a problem where it must act as a server. In this case, even “Turn on NAT” on your home router will still be inaccessible because the address used for browsing will be private, even if it belongs to a larger network.
So, if you try to open router port configuration programs such as uTorrent or eMule, please use the multiplayer mode from online PS4 this, probably, or perform similar operations, even if I have to follow your guidance, you can not do Your service provider has assigned you a private and non-public IP address.
This approach is usually for technical reasons and aims to ” and save » the IP address or to ensure adequate protection against external attacks. Not all telephone operators assign private IP addresses to their users, but this feature is ensured when signing the contract (And the possibility of making public, static or dynamic IP requests) is a good thing.
How to know IP details
After clarifying the difference between the various types of network addresses, it’s time to explain how to know whether the IP address assigned to you by the telephone provider of your choice is public (so it can be accessed from the outside). ) Or private.
The check is very simple: compare the “Internet address” specified in the router with the address of the device that identifies you operating on the Internet.
To do this, start the browser and router management panel connection to access address access through 192.168.1.1 , direction 192.168.1.254 or address 192.168.0.1 . If necessary, then insert user name and password to log in.
If you’ve never tried to access the router and have not changed the password before you determine the default credentials may be the administrator / administrator o administrator / password , depending on the network equipment you have.
If you cannot access the router following the steps shown above, please follow the instructions in my dedicated guide.
After registration is completed, go to the relevant page of the connection status summary and find the following articles IP address.
Unfortunately, I cannot provide you with accurate information about all routers on the market, but I can show you the manufacturing steps of some popular devices.
- FASTGate router (Fastweb): After logging in, click the tab is connected at the top, then located in La Linea on the left navigation bar: being under the related charts download and upload speeds immediately specify the information you’re looking for.
- TP-Link router (firmware 1.1.x): After entering the router, to the network map , in the left navigation bar. The information you’re looking for in the box designated network .
- TP-Link router (firmware 1.0.x) – log into the router, then click the tab Device Information , on the left, then look for the box network information , you will find the information in them.
- TP-Link router (Firmware 0.x) – Click partially state , located on the left sidebar, and then locate the box DSL : the information you’re looking at the IP address .
- Linksys router – Click the tab status / state , located in the far right, and then write down the address near the entrance of the Internet IP address .
- Asus router – Click the tab Network Diagram , and then on the icon in the Internet / WAN master , and then note the newsroom address specified WAN IP .Note : IP addresses of this type are 192.168.xx o 10.xxx or, 172.(16-31).xx. They are almost always local private IP addresses (that is, those IP addresses used to identify routers on home/business networks) ), no use for further control. Therefore, it is recommended that you search for IP addresses in other locations.
Once you have the IP address that the router uses to connect to the Internet, you only need to compare it with the IP address you see from the outside. To find out, all you have to do is to connect to the WhatsMyIP.org website and read the specified address immediately afterwards. Your IP address is .
If WhatsMyIP is unavailable, you can trust many other such sites, and I explained in the guide how to find your IP address.
IP address of the router If the site found the retrieved IP addresses match, then you have a public IP address. Conversely, if the two addresses are different, it is likely that you have a dedicated IP address.