"On the Internet, you don't know whether you are chatting with an individual or a dog." This classic line speaks of the virtuality and uncertainty of the Internet. Today, this problem seems to be solved. A few days ago, the Internet Corporation for Assigned Names and Numbers (ICANN) released a new piece of data: It is expected that IPv4 addresses will be exhausted in August 2011. At present, the remaining global IPv4 addresses are only 252 million, less than 6%. The industry believes that the IPv4 address pool that has supported global Internet applications for 30 years is one step closer to the exhaustion point, and the transition from the Internet to the IPv6 network cannot be delayed.
The old "house number" dried up
Guangdong IPv4 addresses are used up by August next year
"Because of the higher Internet penetration rate in Guangdong and the need for 3G development and triple play, IPv4 addresses are expected to be used up by August 2011, earlier than ICANN predicted. Currently, Guangdong Telecom has already constructed in Shenzhen Test the network and test it. "On July 30, the relevant person in charge of Guangdong Telecom told reporters that international IPv4 had been allocated before, and the address resources allocated to China were about to be used up. As a result, China Telecom has already started IPv6 pilot work in Guangdong and other provinces.
The source said that the Internet Protocol IP, as a protocol standard, is the unique identifier of network devices connected to the network, and is called the "house number" on the Internet. At present, the IP protocol version is divided into two types: IPv4 and IPv6, and IPv6 can provide a larger address resource than IPv4. If you do not switch, wait until the IPv4 address is used up, the new Internet equipment will not have a "house number", users can not log in.
"Each grain of sand has an IP address"
Switching will not change the experience
The reporter learned that the most direct benefit of switching to IPv6 was to solve the problem of insufficient "house number" on the Internet, and the number of new addresses reached 2 to the 128th power. "The industry's argument is that this allows each grain of sand on the planet to have an IP address." The aforementioned telecommunications source said that after switching to IPv6, Internet technology has a more realistic performance.
In fact, the IP address to be accessed only needs to be fixed, such as this newspaper's Dayang.com. When netizens use mobile phones or PCs to access the Internet, the IP address used is not fixed. Even in an IPv6 network environment, this experience will not change.
Whether at home or in a hotel, the IP addresses obtained by ordinary users on the Internet are randomly assigned. "The network will seek the fastest Internet access channel for users."
"Chat with dogs" is a certification issue
IPv6 provides the basis for the solution
After using the IPv6 address, any person or object has an IP. So, does it mean, "On the Internet, you don't know whether you are chatting with an individual or a dog." This classic problem can also be solved with it?
"Strictly speaking, IPv6 solves the problem of insufficient address resources, and 'chatting with a dog' is a problem of authentication. The two are not necessarily related." Technical experts told reporters that at present, whether it is IPv4 or IPv6, the use of The authentication system is based on things, and the Internet is still virtual. That is, the IP address is home to a computer or mobile phone. The IP address obtained by A's computer is searchable, but this does not guarantee that B may borrow A's computer to access the Internet. This is the same reason why strangers call you in the name of others. Therefore, the "chat with dog" puzzle cannot be solved.
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