§2023-12-10
This is the IP layouts of YuShei
| Company | IP Blocs | Mask | Nwork Address | Broadcast address |
|---|---|---|---|---|
| YuShei | 192.168.0.0 ~ 192.168.15.254 | 20 | 192.168.0.0/20 | 192.168.255.255 |
¶ decimal and hex representation
| binary | Decimal | Hex |
|---|---|---|
| 0000 | 0 | 0 |
| 0001 | 1 | 1 |
| 0010 | 2 | 2 |
| 0011 | 3 | 3 |
| 0100 | 4 | 4 |
| 0101 | 5 | 5 |
| 0110 | 6 | 6 |
| 0111 | 7 | 7 |
| 1000 | 8 | 8 |
| 1001 | 9 | 9 |
| 1010 | 10 | A |
| 1011 | 11 | B |
| 1100 | 12 | C |
| 1101 | 13 | D |
| 1110 | 14 | E |
| 1111 | 15 | F |
¶Network Address and Broadcast address
In a TCP/IP network, each device is assigned an IP address to identify itself on the network. When you define a subnet using CIDR notation, the network address and the broadcast address are two specific addresses within that subnet.
Network Address:
The network address is the address that represents the entire network or subnet. It is the address with all host bits set to zero. For example, in the CIDR notation "192.168.16.0/20," the network address is "192.168.16.0." All devices within this subnet share the same network address as the first part of their IP address. Broadcast Address:
The broadcast address is used to send data to all devices within a specific network or subnet. It is the address with all host bits set to one. Using the same example, in the CIDR notation "192.168.16.0/20," the broadcast address is "192.168.31.255." When a device sends data to this address, it is broadcast to all devices in the "192.168.16.0/20" subnet. In summary:
Network Address: Represents the entire network, with host bits set to zero. Broadcast Address: Used to broadcast data to all devices within the network, with host bits set to one. It's worth noting that in many networking environments, the network address and broadcast address are often reserved and not assignable to individual devices. For example, in a subnet with the network address "192.168.16.0" and a subnet mask of "/20," the usable host addresses for devices would typically be in the range of "192.168.16.1" to "192.168.31.254," excluding the network address and broadcast address.