piggyback routers

In the process of using OpenStack, we encounter the creation of virtual machine routers, switches, etc.1. What is their role in the end?Why is 2.DHCP produced, and what is its role? Personal Summary:Switches: Generally used in the same network segment, working at the data link layer, for example we are in the same office, then the switch is used.Routers are used in different network segmentsIn other words, an office Internet access, you can use the sw

cured to the network card, which is generally non-changing. The IP address is usually assigned automatically by the network administrator or the system.3, the traditional switch can only split the conflict domain, cannot split the broadcast domain, and the router can split the broadcast domainNetwork segments connected by switches still belong to the same broadcast domain, and broadcast packets propagate across all network segments connected to the switch, and in some cases lead to traffic cong

CISCO PT Simulation Experiment (15) loopback Telnet configuration for routersExperimental Purpose :Mastering the features and functions of router loopback interfaceMaster the configuration of the Loopback interface to achieve Telnet login to the routerMastering the basic configuration of RIP dynamic Routing and default routingExperimental Background : as the network environment of the company is becoming more and more complex, as a network administrator, it is necessary to allocate the limited n

For a large network environment, what we need is a high-performance router, in the current market of high-end routers, Cisco routing is undoubtedly one of the most suitable products, this article describes the characteristics of Cisco routers, especially in the formation of large networks, the role played out. Cisco's IT staff has tried a variety of methods, including many it maintenance staff are willing

Routers are connected to the Internet in each LAN, WAN equipment, it will automatically select and set the route according to the channel, to the best path, in order to send signals before and after the device, how to set the router speed limit it? For many people to share the broadband, whether it is a family or a business, some people like Non-stop software hanging Peer-to-peer (Thunderbolt, QQ Whirlwind, Electric donkey emule, flashget, etc.), wil

Now a lot of people are sharing routers, if not very familiar with each other (perhaps acquaintances better hands). Many people do not understand the router, you may think that the broadband suddenly broken or the speed of the network suddenly did not give force. And forget that this is the router inside the settings have been changed, restricting your internet speed. 1 　　Problems caused by the broadband speed-limiting function of

Recently, the news about the security door of the router is constantly, the media exposure router is vulnerable to attack and rub net. Recently, a netizen exposed WiFi security vulnerabilities, once the network, routers hijacked, then the user online banking information will be leaked, and even be modified. In order to avoid the user security risk, the author teaches everybody how to prevent the router to be hijacked, in which as long as completes the

A hub is a physical layer of equipment, can be understood as a network cable in the middle of a plurality of interfaces, so many interfaces to share the bandwidth of this network cable, so that the devices on these interfaces will be in the networks to conflict, or ' road ' crowding out of the situation. (All devices in a broadcast domain, conflict domain), the hub is now rarely used. switch, Network Bridge is the data link layer of equipment, the appearance of the network Bridge is to solve the

vendor issues a patch, which needs to be noticed by the user. Avoiding identity crises Hackers often use weak passwords or default passwords to attack. Adding long passwords, and choosing a 30-60-day password lifetime, can help prevent such vulnerabilities. In addition, once an important it employee resigns, the user should change the password immediately. The user should enable password encryption on the router so that even if the hacker can browse the system's configuration file, he still n

). Solution: When the network speed down phenomenon, with the hands feel routers and other networks access equipment surface temperature, if the feeling is very hot, that explains the frequent drop line is the reason for the hardware equipment problem, it is best to consider replacing a new equipment, the Internet is normal, you can put the router and so on in the heat dissipation conditions better place, the situation will be improved. If the device

With the rapid development of network technology, the wide application of Internet has become more and more demanding for communication media. Frame Relay (Frame-relay) is widely used for its communication stability, speed and price concessions, and the key to the use of frame relay is the configuration of routers. Here are some common routers of the frame relay configuration, I hope to play a role: 1, Cis

With the development of the routing industry, new routes are also emerging. Here we mainly introduce application-type routers. The best way to reduce the cost of data integration is to reduce the complexity of the products used. Because most integration projects are point-to-point, application-type routers can be conveniently installed between these points. Similar to a multi-protocol application-type rout

With the development of the routing market, the demand is also very high. Many people may not understand the specific methods of modular routers. It does not matter. After reading this article, you will certainly have a lot of GAINS, I hope this article will teach you more things. With the development of network technology and the expansion of network services, broadband and IP have become the inevitable trend of development, this trend not only puts

Cisco router knowledge has become more and more widely used in modern enterprises. Next we will briefly learn about the secure router configuration solution. Knowledge of nine Cisco routers required by network engineers 1. Are the routing protocols supported by Cisco routers compatible with those of other manufacturers? In addition to IGRP and VPN, one of the Cisco rout