How important is Ip-mac binding? (Trolls's opinion)

Ip-mac binding is a common function of many routes, gateway, mainly used to bind the IP address of LAN terminal, prevent the terminal to arbitrarily modify the IP, cause the network IP address conflict, and cause the net to break fire. First of all, the principle of ip-mac binding two parts: The former part, the so-called binding, is to make this computer's Mac always get the same IP address or designated IP, this is easy, many routes are claimed to have such a function called the IP-MAC binding. But do this step, no meaning, because the Internet terminal once modified IP, can still surf the internet, so IP conflict, the real tamping Ip-mac binding is the latter part of the Internet behavior Management can be done (the core switch can do, but the configuration is troublesome trouble) to have Internet data, Through behavioral management to detect whether this Mac has always been the acquisition of this IP, once not acquired this IP or IP was unauthorized modification, will let the Mac off the net. Or, once there is a new terminal that does not register and re-enter (computer, routing or mobile phone) in, even if plugged in, can not access the Internet.

So is there any need for IP-MAC bindings, and a few more scenes to reproduce?

The half-baked Amin can not surf the internet, ah yo, can not surf the Internet, IP issues, to modify an IP test, Amin modified IP can surf the internet, but such a modification, will lead to the old Wang next to the network. If the old Wang is also smattering, then also modify the IP, then the next room of Lili may break the net, Lili is a novice, can only yell, network management change IP, good luck, change a useless IP can not surf the internet, bad luck, change the IP, the leader to change the network is possible. If only a few people to the same, if more people, that simply to the network management busy work to fuel. So, Ip-mac binding can block those who think that modifying an IP can solve the problem of the Internet, and let the IP more orderly.

There is a scene generally appear in the workshop, or a large office environment, the ability to do a strong hand, with a small no line from, casually to a switch or route on a plug. Group A small wireless, let mobile phone or pad can come to rub the net, or vigorously is the mobile personnel to connect their own computer to the switch routing. This behavior is a selfish act, but in fact it is a more dangerous action. Privately connected to an Internet terminal in, if the Internet computer or mobile phone a "poison machine" is easy to infect the whole LAN. Once the "poison machine" into the local area network, causing infection, even if there is a professional hardware firewall is only furnishings. Ip-mac binding does not necessarily give the security bonus points, but such a small detail to hold, the configuration is easy and easy to prevent.

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How important is Ip-mac binding? (Trolls's opinion)