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Private and Public IP Addresses (view source)
Revision as of 13:18, 21 August 2018
, 13:18, 21 August 2018no edit summary
'''Public dynamic''' - means the IP address can change from time-to-time (for example, when you lose connection and re-connect or the ISP might change the address periodically).
'''Public dynamic''' - means the IP address can change from time-to-time (for example, when you lose connection and re-connect or the ISP might change the address periodically).
[[File:Dip.png|1500px]]
[[File:Dip.png|1100px]]
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.
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.
'''Public shared''' - in some cases, an ISP can assign a public IP address to a group of users, and then employ NAT to isolate their traffic.
'''Public shared''' - in some cases, an ISP can assign a public IP address to a group of users, and then employ NAT to isolate their traffic.
[[File:Shrip.png|1500px]]
[[File:Shrip.png|1100px]]
In the example above we can see that it is possible for multiple devices (even websites) to share a single public IP address. An ISP provides clients with private WAN IP addresses and then uses NAT to differentiate to which host specific data packets should be directed to.
In the example above we can see that it is possible for multiple devices (even websites) to share a single public IP address. An ISP provides clients with private WAN IP addresses and then uses NAT to differentiate to which host specific data packets should be directed to.
