![]() ![]() More information can be found here: What is an IP address? (Or all over the internet.) #Clementine player multiple ip addresses macMore data is sent containing MAC addresses and things like that, but essentially one public IP address can represent an entire network of devices behind it. Ultimately, the computers seeing your traffic see the external IP address from your modem and not your physical computers internal IP address. When you send a message your computers, the IP address basically becomes ‘encapsulated’ within various ‘headers’ of your data. The way people are able to have servers visible to the public is that they can tell the modem things like this: “When a request comes to our PUBLIC IP ADDRESS asking for a resource, connect that traffic to INTERNAL IP ADDRESS OF RESOURCE.” The other side of the modem/router (where you plug in your access point, switch, or computers) is given an IP address that you can configure. This is put ‘on’ the interface of your modem which is attached to your cable/DSL/T1 line. On the Internet side of the modem, you have an IP address assigned by your ISP which is the one shows you. This way only one public IP address is needed for all of your devices to talk to the Internet. requests from your internal network get sent to your modem which forwards them to the Internet. The modem bridges the public Internet to your network. Public IP (Cable Jack) –> –> Private Network (IP) –> Ethernet Ports –> So here, effectively, is what your modem does:
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