Private and Public IP Addresses: Difference between revisions

Private and Public IP Addresses (view source)

1,118 bytes added , 12 January 2018

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 [[File:Dynamic ip v2.png]]
-From the example above we can see that in case of dynamic IP the ISP
+From the example above we can see that in case of dynamic IP addresses the ISP provides the routers with private WAN IP addresses that are then "translated" into public IP addresses when connecting to remtoe hosts on the internet. The main difference from static IP addresses is that the dynamic IPs provided by the ISP are not permanent. They will change when the router disconnects and reconnects, re-registers to a network operator or, in some cases, the ISP might update the IP addresses periodically.
+Speaking in terms of remote access, dynamic IPs complicate the situation because there is no way to tell what IP address a remote has at any given time. While remote access is more complicated with dynamic IP addresses, it is not impossible and can be achieved using '''[[Dynamic DNS]]'''. '''DNS''' or '''Domain Name Service''' provides names (such as www.google.com, www.facebook.com) for IP addresses. The difference with Dynamic DNS is that it periodically rebinds IP addresses to a hostname. Therefore, when using Dynamic DNS you would only have to remember the hostname to reach a specific device at any given time even though its IP address might change from time to time.
 ===Shared IPs===