Using a network tool in an android phone, I found the Local IP and External IP as:
I believe both are the Public IP.
Pls be kind and let me know, what is Local IP and External IP in this scenario?
Regards
TekQ
The Local IP is the address that your provider (Verizon, AT&T, Sprint, etc...) uses to identify you on their network. The External IP is the address that websites (google.com, facebook.com, etc...) use to identify and communicate with you.
There is a translation process, known as Network Address Translation (NAT), that converts Local IP addresses into External/Public IP addresses. The NAT service is controlled by your cell network provider.
More information can be found on Wikipedia's Network Address Translation page.
Related
I know about Network Address Translation and how it works by replacing the source IP address (which is private) by its own public IP while forwarding packets into the network.
But the routers that we buy for personal use at home (Wifi routers) to connect to the internet do have a NAT functionality?
Yes, they always have NAT functionality. It is for saving IP address and the safe of your devices connecting to Internet.
I'm working on a project which enables a web-based server which is accessible through 127.0.0.1:8081.
But I am not really able to understand the concept of the ip address. Does it mean the address is only available from the device which opens up the server, or across the whole LAN on any computer connected to that same router?
127.0.0.1 is a special IP address that refers to your local machine. Localhost resolves to this address. If you want to make your server accessible from the web or a different machine you will have to use a routable IP address.
hello I created a website with IIS. I open ports and everything. I can access this website from another network with ip and port
like http://81.215.xx.xx:81 . but with any computer with same network (LAN) I cant access http://81.215.xx.xx:81 like this. I can only access when I write the static ip of that machine. like http://192.168.1.3:81/
I want to access with external ip in lan how can I do that?
Your LAN most likely has another equipment, a router for example which has an interface with the other IP address, http://81.215.xx.xx:81. Your router forwards requests to your server based on its routing table. This routing does not exist when you are in the private network. That is why you can only access the server with its private IP address which is in the same range as your computer when you are in that network.
I have a network with a resource with an internal ip of 192.168.1.254 for example. I need to be able to access this resource from the external IP address of 86.126.1.234 let's say. I am off site and need to use VNC to access this computer.
How can I access this resource using just the two IP addresses.
Thanks in advance,
Maksim
192.168. is a non routable ip address.
You need an external facing ip address.
to find out your external ip address you can try
whatsmyipaddress.com
You will probably need to change your router configuration to make your VNC port forwarded to 192.168.1.254.
Or, you if you just need remote control access to your Computer, try using
www.teamviewer.com
I've some doubts about a VPN.
I've been given a Cisco VPN client to connect to the LAN of my society. I use this to connect to a local server. I don't understand how the VPN is working.
I'm at home now. In the VPN Client I see an IP. If I go to http://www.whatismyip.com/ I see another IP, which is the IP I've when I'm also without the VPN Client, while I expected to see the IP of the VPN Client. If I use $_SERVER['REMOTE_ADDR'] I see another (third!) IP, while I expected the IP I see in the VPN Client.
Can you clarify please?
I need this to know if I'm identifies always from the same IP from the local server.
If I'm not mistaken, this should be correct. Please correct me if I'm wrong.
By default you have 2 IP addresses.
Local IP: IP address used to identify yourself within your LAN.
Global IP: A public IP used to gain access to the internet. At home it will most likley be a public IP NATTED* by your ISP.
Because you're also using a VPN connection, you'll receive a third IP.
Local IP for VPN: IP address used to identify yourself on the other end of the VPN.
*NAT = Network Address Translation