192.168.1.1 is a dedicated Internet protocol commonly used the default address,many hardware manufacturers to factory settings this address is used. They set the default value (factory setting), but the user can according to their own preferencesusing router panel replacement.
Private IP address range from 192.168.0.0 to 192.168.255.255, the main features,they are incomparable in the public network. In other words, you can use the computerwork and home computer IP address is set to 192.168.1.1, this is not a problem. Butcoverage in your network, it may cause some problems, such as sorting 'collision' -meaning that two network equipment cannot be on the Internet to use the same IP address.
Private IP address second important feature is the repeated use of qualification. You can address the use of repeated, even under different network conditions, can be used by different users.
IP address according to network and host number to points, divided into A, B, C three and special address D, E. The 0 and 1 are reserved for No.
Class A: the first byte is the network number, host number three bytes. The front ofthe class IP address is "0", so the network number value address between 1~126. For large-scale network.
Class B: the first two bytes for the network number, host number two bytes. The front of the class IP address is "10", so the network number value address between 128~191. Generally used for medium scale network.
Class C: the first three bytes for the network number, host number last byte. The front of the class IP address is "110", so the network number value address between 192~223. Generally used for small networks.
The A, B, C3 (the following table) by InternetNIC globally uniform distribution, D, E isspecial.