就是ip地址的类别阿，现在可用的就是A，B，C，D类ip，其他类的还没怎么使用
ip classless的主要意思是指，当一个数据包进入路由器后，他会携带目的地地址，在没有ip classless的时候，路由表查询的时候，是匹配主网地址的，如果找不到该主网对于目的地相应的匹配出口的时候就会丢弃数据包，这种情形，看起来无可厚非，但是如果你在路由器上使用缺省路由(ip route 0.0.0.0 0....
Now, not everyone knows the basics of an IP address. With all of that in mind, we have decided to explain what an IP address is, and the three types of IP addresses found in computers and networks. As it stands right now, you should have a basic knowledge of what an IP address is...
IP address, Network address, and Host address Explained The length of network addresses and host addresses in IP addresses are different in all IP classes. In classA, the first bits are reserved for the network address. The remaining24bits are available for the host address. In classB, the ...
Learn what is an IP address and as a unique number identifies any device that connects to the internet. Discover how IP addresses work and what IP addresses are available.
IPv4 Address Classification As shown in Figure 1-2, IP addresses are classified into five classes to facilitate IP address management and networking. Figure 1-2 Five classes of IP addresses At present, most IP addresses in use belong to Class A, Class B, or Class C. Class D addresses ar...
Unicast: One destination (“normal” address)(大部分情况下) Broadcast: Send to everyone(比如手机里的热点,wifi) Multicast: Send to a particular set of nodes(比如说视频网站,直播平台) –Used for streaming video of live events Anycast: Send to any one of a set of addresses ...
The DHCP server on the LAN assigns an IP address of 192.168.1.xxx with a subnet mask of 255.255.255.0. This works fine for LAN and internet access via a router. I also have a PPTP VPN connection over the internet to a Windows 2000 RAS server which assigns IP addresses in the range ...
Example for a Class D IP address: 243.164.89.28 Overview: IP address classes and bit-wise representations Class A 0. 0. 0. 0 = 00000000.00000000.00000000.00000000 127.255.255.255 = 01111111.11111111.11111111.11111111 0nnnnnnn.HHHHHHHH.HHHHHHHH.HHHHHHHH Class B 128. 0. 0. 0 = 10000000.00000000.00...
In classes A, B, and C, a range of IP addresses are set aside for private networks. These IP ranges aren't accessible via the internet. All public routers ignore any packets sent to them containing such an address. NameCIDR blockAddress rangeNumber of addressesClassful description ...