ccna 200-301 network simulator tools internet

ccna 200-301 network simulator tools internet.How can we get all 4 computers to communicate with each other? There are many ways to do this, here is a brief list of 3.. The first: modify the PC2, PC4 IP address 192.168.1.3, 192.168 4, so 4 computers in the same subnet, each other can communicate directly. This method has certain limitations, if 192.168.1.0/24 network has 254 computers, if there are new computers to join, 192.168.1.0/24 network segment of all valid IP addresses are assigned out, the new computer will be added to the IP address available, then you need to use the second method.. Method 2: modify the submask of four computers for TZT, that is, 255.255.252.0, so that the network number of four computers are 192.168.0.0/22, in the same subnet, such a subnet, the network bit has 22 bits, the host bit has 10 bits, the number of hosts that can accommodate 2 = 1022, that is, from 192.168.0.1 to This method also has shortcomings, because the computers in the same subnet in the same broadcast domain, one is a security risk; second, the existence of a large number of broadcasts, affecting the efficiency of communication; third is the difficulty of troubleshooting, if the number of computers in the same subnet is too much, you can consider using the third method.. The switch ports of PCI and PC3 are assigned to a VLAN (VirtualLocalArea Network, VLAN configuration will be discussed in more detail in later chapters of this book), and the IP address 192.168.1.254 is assigned to this VLAN, and the gateways of PC1 and PC3 are set to 192.168.1.254. The switch ports of PC2 and PC4 are assigned to a different VLAN, and this VLAN is assigned the IP address 192.168.2.254, and the gateway of PC2 and PC4 is set to 192.1682254. so that the four computers can communicate with each other. The Layer 3 switch can connect two subnets, and the Layer 3 switch has two VLANs, each VLAN is a broadcast domain, and the broadcasts in the two VLANs do not affect each other. The third method can effectively overcome the shortcomings of the second method, the disadvantage is that it increases the investment in hardware equipment.When doing subnetting there is one thing to note, the host bit all "0", all "1" IP address can not be used, . All "0" is the subnet address, all "1" is the subnet broadcast address, such as 192.168.1.0/24 and 192.168.1.255/24 these two IP addresses represent the network address and broadcast address, respectively, can not be configured for computer use. 192.168.1.255/22, 192.168.2.255/22 can be assigned for computer use. The number of IP addresses available in the 192.168.1.0/24 network is 256-2=254, and the number of IP addresses available in the 192.168.0.0/22 network is 1024-2=1022, that is, the number of IP addresses available in each subnet is: 2 host bits1. why subnettingBefore we talk about subnetting, let's analyze why we need to subnet? Because subnetting has the following main benefits.. Reducing network traffic and optimizing network performance. In Method 3 introduced earlier, you know that the broadcast addresses in different subnets are different from each other.while the broadcast addresses in the same subnet are the same. Imagine that if a Class B address 173.1.0.0/16 is requested, the number of hosts that can be accommodated in that subnet is 65534, and more than 60,000k40