In the LAN, if your computer's IP address is the same as the IP address of other computers, a conflict will occur. Today, the deep xp system download station will talk to you about IP issues and how to set up IPv6 protocol for Windows 7.
Every computer needs IP?
First of all, why should every computer have its own IP? Is it not okay? So, the IP address is like your computer's house number. ”, only with this "number", other users and computers can find your computer. You said to other computers "Left turn, turn left, turn left, then turn left"; it is definitely invalid.
In the LAN, each computer has an IP, which is also true in the Internet. However, the number of users on the Internet is unmatched by the local area network, so the problem arises. —— With the rapid spread of the Internet, more and more people have joined this "net"; but the existing The IP protocol is almost ready to accommodate so many people! What to do?
Someone who knows a bit knows that the existing network protocol (IPv4) uses a 32-bit address, although it counts 232 (4294967296) Addresses, but the number of demand is not too much, perhaps not until 2012, the Internet's IP address has arrived at the "end of the day".
What is IPv6? Is it useful?
If you have installed the win7 system, you may have noticed that there is already one more in the Windows 7 system "Internet Protocol". /IPv6”, and whether to turn off this option has become a problem that many users are entangled. Xiaobian suggested that everyone —— no off!
IPv6 is precisely to solve the problem that IPv4 addresses will be exhausted. It uses a 128-bit address length, so there are 2128 (interested friends can calculate, huh, huh) an address is available! Yes, compared to IPv4, the new IPv6 address can be said to be unlimited! So IP in the IPv4 protocol Address issues will no longer be an issue in the IPv6 protocol.
In addition to solving the problem of insufficient number of IP addresses, the biggest improvement of IPv6 for ordinary users is to further improve security (encryption of network layer data and verification of IP packets. At the same time, strengthen the management of LAN). Make it more convenient and faster.
If you say how the former improves security and improves security, the feeling is not obvious or not at all, then the latter, I believe that users who use Windows 7 system to build LAN will feel Obviously! Compared to XP, access to the LAN often appears stuck, the feeling of accessing the LAN in windows7 can be described as fluent, and using the family group and other group settings, file sharing is also very convenient!
In addition to the above Say, there are other improvements in IPv6, so I won't go into details here, but I need to be reminded that you should never close IPv6 and be brave enough to accept new things!