You log on and make one
The Internet Control Message Protocol version 6 (ICMP v6) is a type of Internet protocol that deals with sending messages to other routers or computers. ICMP v6 was developed because ICMP v4, its predecessor, was running out of IP addresses in its table of available IP addresses. This is due to more and more people around the world buying computers and connecting them to the Internet (most of these people live in LDCs [less developed countries]).
All email addresses are in small caps, as are all internet addresses. If you are typing internet or email addresses in large caps, you are in fact "doing it wrong".
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For V4 addresses they are separated by a period (.). For V6 addresses they are separated by a colon (:)
Public IP addresses
IPv6 addresses that begin with 2000 are known as global unicast addresses. These addresses are routable on the internet and are used for identifying individual interfaces on devices that require unique addresses. They are similar to public IPv4 addresses and can be assigned to devices for direct communication over the internet.
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.cn means, china internet addresses
The two Internet Protocols are:IPv4IPv6
public
Private IP Addresses are not used for internet data traffic but are intended to be used specifically on internal networks called intranets.
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