how to calculate subnet mask

different networks, so it does not pass.Here is a conclusion: the computer with a direct connection to the network cable or through the hub (hub) or the ordinary switch between the computer to be able to communicate with each other, the computer must be on the same network, that is, their network address must be the same, And the host address must be different. If it is not a network will not be able to pass. This is like the example we cited above, the same as the North Street tenants because

Tutorial on TCP/IP Subnet Mask 1. Default class A, B, and C addresses, subnet mask; Ii. Role of subnet mask: Code:IP address 192.20.15.5 11000000 00010100 00001111 00000101Subnet Mask

is 202.112.14.159.In the ccna test, you also need to plan the subnet address and calculate the subnet mask based on the number of hosts on each network. This can also be calculated based on the above principles. For example, if a subnet has 10 hosts, the IP address required

is a private address and cannot be applied directly in the Internet. The Internet must be converted to a public address.I. Why do I need to calculate the network address?In a word, computers in the network can communicate with each other. first, let's look at the simplest network. Figure 3 uses a network cable (crossover line) to directly connect the two computers. the following are several IP address settings to see if the network is accessible unde

bits and 1 are the same, the IP address belongs to the same network segment, the one after the 24-bit path changes randomly and belongs to the same network segment. In this example, the IP address (a) 188.188.0.111 is in the range of 188.188.0.0 ~ 188.188.1.255, which belongs to the same network segment only. The IP address range of IP (B) In the same network segment is 188.188.4.0 ~ The range of 188.188.5.255 is obviously not in the range of IP (a), so IP (A) and IP (B) are not in the same net

): Network address + host address =192.168.100.1Broadcast address: 192.168.100.255How are these addresses calculated? Why calculate these addresses? To know how, first to understand a truth, the purpose of learning Network is how to make the network of computers communicate with each other, that is, around the word "tong" to learn and understand the concept of the network, rather than just back a few nouns.Note: 192.168.100.1 is a private address that

The network does not pass, this is the most network problem table image, but if you can access me, but I can not access you, this problem is more troublesome. This article is the author in the actual combat in a subnet mask caused by the fault summary. The network is a phenomenon that often occurs, encounter this phenomenon, I believe many people will focus on network cable, NIC driver, network card parame

two IP addresses belong to the same subnet. When calculating the subnet mask, pay attention to the reserved IP addresses, that is, the "0" address and broadcast address, these are IP addresses when the host address or network address is "0" or "1". They represent the current network address and broadcast address, which cannot be included. The following example d

All the calculation and application of the subnet mask are based on the binary, so we should focus on the binary form of The netmask. Generally, we can view the IP attribute in decimal format. in order to make it easier for users to watch, in fact, computers use binary methods to calculate and use subnet masks, A commo

IP addresses, subnet masks, and gateways in network management are the basic knowledge that each network administrator must master. Only by mastering them can you really understand the TCP/IP protocol settings. The following describes what a subnet mask is.To understand what the subnet

is in the back. The subnet mask is used to distinguish and calculate the IP address. For example, if the subnet mask of ip192.168.1.1 is 255.255.0, the network address is 192.168.1.0 and the host address is 0.0.0.1. Gateway So what is the gateway? A gateway is essentially

Subnet mask (Subnet masks): The subnet mask is used to identify which part of the IP address is a network address. Which part is the host address, there are 1 and 0 components, long 32 bits, all 1 of bits represent the network number. Not all networks require subnets, so th

Subnet Mask:What is a subnet mask subnet mask cannot exist alone,It must be used in conjunction with an IP address. The subnet mask has only one effect,is to divide an IP address into t

IP address and subnet mask used for computingAfter knowing the IP address and subnet mask, you can calculate:1. Network Address2. broadcast address3. Address range4. Several hosts on this websiteExample 1: the IP address in the following example is 192 · 168 · 100 · 5. The

The subnet mask (subnet mask) is also called the netmask, address mask, and subnet mask, which is used to indicate which bits of an IP address identify the host's

I recently reviewed some network knowledge and saw the subnet mask. The subnet mask is encountered in actual use and tests, but the calculation of the subnet mask involves binary conversion, it is troublesome. This time, I saw a s

Topic: Solution for subnet mask faults of switches: Fault Phenomenon: Asymmetric Network Access failure, troubleshooting: Firewall and telecommunications? Subnet Mask. Fault Summary: Why can't I access the Internet but cannot connect to the headquarters? fault tips: the important role of

~ 126 is the third Subnet 10000001 ~ 10011110 is 129 ~ 158 is the fourth Subnet 10100001 ~ 10111110 IS 161 ~ 190 is the fifth Subnet 11000001 ~ 11011110 is 193 ~ 222 is the sixth Subnet Select 161 ~ Section 190 is sent to Network A, 193 ~ Section 222 is sent to Network B because each