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GMartinFlag for United States of America

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what is the difference between an IPv4 address and an IPv6 address?

Hi Everyone,

         While engaging in some troubleshooting of two wireless laptops which is still ongoing, there was reference being made to IPv4 addresses and IPv6 addresses.  What exactly is the difference or differences between these two?  To be honest, I never really noticed any mention of IPv6 address being made until Windows Vista and Windows 7 came along.  Therefore, I assume this is probably some kind of new internet protocol.

           Any clarification on this will be appreciated.

           Thank you.

           George
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>>> You don't need to have IPv6 enabled on most local networks

That is true; however, both Vista and Windows 7 come with IPv6 protocols installed and enabled. My point was that you do not need to disable them in either OS. ... Thinkpads_User
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Hi Everyone,

             Thank you so much for the replies given.  At this point, I would like to break everything down into more lamen terms,  First, what is the significance of an IPv4 address?  From what I gather, it represents the location of a device (e.g. NIC card, WiFi card, router, etc.) on a network.  In other words, an IPv4 address can be thought of as being similiar to a street address.  However, I am having trouble capturing the signficance with respect to an analogy for the IPv6 IP address.  I hope my analogy of the IPv4 address is a correct one.  If not, please feel free to jump in and correct me on it.

                George
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Thank you. I was pleased to assist you with this. ... Thinkpads_User
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Hi Everyone,

            Thanks so much for the insightful and visionary input shared to this question.  To be honest, I did learn a great deal from each person's post.   The differences between IPv4 and IPv6 were explained very thoroughly as substantiated by the great examples given.  I especially appreciate the explanation given for why IPv4 addresses are running out, thus, opening the need for for IPv6.  And, with technology like it is, it certainly made much since considering how many different things are online these days.

               Many thanks once again.

               George