参数资料
| 型号： | 20-101-0435 |
| 厂商： | Rabbit Semiconductor |
| 文件页数： | 50/100页 |
| 文件大小： | 0K |
| 描述： | MODULE RABBITCORE RCM2110 |
| 标准包装： | 1 |
| 系列： | RabbitCore® |
| 模块/板类型： | MPU 核心模块 |
| 适用于相关产品： | RCM2110 |
| 产品目录页面： | 620 (CN2011-ZH PDF) |
| 其它名称： | 316-1086 |
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User’s Manual
47
6.3 IP Addresses Explained
IP (Internet Protocol) addresses are expressed as 4 decimal numbers separated by periods,
for example:
216.103.126.155
10.1.1.6
Each decimal number must be between 0 and 255. The total IP address is a 32-bit number
consisting of the 4 bytes expressed as shown above. A local network uses a group of adja-
cent IP addresses. There are always 2N IP addresses in a local network. The netmask (also
called subnet mask) determines how many IP addresses belong to the local network. The
netmask is also a 32-bit address expressed in the same form as the IP address. An example
netmask is:
255.255.255.0
This netmask has 8 zero bits in the least significant portion, and this means that 28
addresses are a part of the local network. Applied to the IP address above
(216.103.126.155), this netmask would indicate that the following IP addresses belong to
the local network:
216.103.126.0
216.103.126.1
216.103.126.2
etc.
216.103.126.254
216.103.126.255
The lowest and highest address are reserved for special purposes. The lowest address
(216.103.126.0) is used to identify the local network. The highest address
(216.103.126.255) is used as a broadcast address. Usually one other address is used for the
address of the gateway out of the network. This leaves 256 - 3 = 253 available IP
addresses for the example given.
相关PDF资料 |
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| 345-030-527-801 | CARDEDGE 30POS DUAL .100 GREEN |
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| 345-030-527-204 | CARDEDGE 30POS DUAL .100 GREEN |
| AT25640-10PI-2.7 | IC EEPROM 64KBIT 3MHZ 8DIP |
| 345-030-527-202 | CARDEDGE 30POS DUAL .100 GREEN |
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