cisco ccna routing and switching 200 125

efficiency of the router configuration, in the Cisco Device command can be abbreviated "typing the first few letters of the command, when the first few letters of the command press the tab can be filled, or directly enter can also execute the command". ）Note: Write is the Save command, and this command executes in privileged mode. In other modes (not available in user mode), you can add do enforcement before the command.3, after the completion of th

Today continue to share some commands for the router's basic configuration. First look at our future configuration routing, partition VLAN used topology diagram, in the future we will use this topology map to complete the later experimental 650) this.width=650; "title=" capture.jpg "src=" http://s3.51cto.com/ Wyfs02/m01/6c/7d/wkiom1vkidjg8lilaadnhwbhx8e751.jpg "alt=" Wkiom1vkidjg8lilaadnhwbhx8e751.jpg "/>The commands we want to share today are:Line co

protocol between as is called the External Gateway Protocol External Gateway Protocol (also called Inter-Domain routing protocol): there are two types of inter-domain routing protocols: externalGateway Protocol (EGP) and Border Gateway Protocol (BGP)2) Dynamic routing according to the algorithm can be divided into: Distance vector

Tags: routing switching technology HSRP working principle three-layer Exchange STP function DHCP serviceFirst, the questionDay 011. What is a Vlan? What does VLAN do? is the interface of the default switch in that VLAN? What kind of Vlan??2. What is Trunk? What is the mode of Trunk? How to negotiate?3. What is the role of EtherChannel?4. What is DHCP? What is the role of DHCP?Day 021. What is the three laye

Day 051. What is NAT? What are the implementation methods?NAT (Network address translation): By translating the private IP address of the internal network into the world's only public IP address, the internal network canTo connect to an external network such as the Internet.How NAT is implemented:The corresponding relationship of the IP address is one-to-one, and is constant, with the help of the static transformation, it can realize some specific service in the external network.Access to the se

Tags: HSRP working principle STP effect ACL access control List loop storm Cisco private protocolDay 031. What is HSRP? How does it work?HSRP: Hot Standby Routing protocolHSRP is a Cisco private protocol that ensures that user communication can be quickly and transparently restored when a network edge device or access link fails.This provides redundant rows for t

(All of the following is the hand of pure hand, there are flaws in the place, please also contain a lot of information to send piglets to exchange!) ）(All content and annotations in this article are displayed in the recursive architecture, because the format display does not understand the point of understanding!) ）(In this paper, the command keyword is mostly used shorthand, if there is an unknown, it is best to type the command when you use TAB completion!) ）

address, the internal network canTo connect to an external network such as the Internet.How NAT is implemented:The corresponding relationship of the IP address is one-to-one, and is constant, with the help of the static transformation, it can realize some specific service in the external network.Access to the service provider.Dynamic conversion: The correspondence between IP addresses is indeterminate, but random, and all private addresses authorized to access the Internet can be randomlyConver

PC2Network 192.168.4.0 255.255.255.0Default-router 192.168.4.254Interface fastethernet0/0IP address 192.168.3.2 255.255.255.0Duplex AutoSpeed auto!Interface FASTETHERNET0/1IP address 192.168.4.254 255.255.255.0Duplex AutoSpeed auto!Router RIPVersion 2Network 192.168.3.0Network 192.168.4.0No auto-summaryExperiment Summary:Implementation premise: All-network communicationThe Knowledge points used:1.route RIP Dynamic routing2. Single-arm routing, trunk

config , keep it , and the rest are copied to running config the. CLI the shortcut:650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M02/83/AB/wKiom1d6BhPy4UFHAADbzvWWcMg895.png-wh_500x0-wm_3 -wmp_4-s_3121356343.png "title=" QQ20160704144520---3.png "alt=" Wkiom1d6bhpy4ufhaadbzvwwcmg895.png-wh_50 "/>f0/0 indicates that the 0 on the board card 0 number interface. The router plugged in to the electrical interface is Down , and the interface of the switch is plugged in up the. is the interf

After the new switch is bought, all need to be simple configuration to meet the unit network operation, after the configuration of the device will need to put it where it should be placed, but in the future we need to view or modify this device, we need to use remote login to configure it. Let's talk about the specific configuration of remote login.First, you need to use a dedicated configuration line (console line) to connect the deviceSecond, configure the line of another section of the connec

Remote control routerThe setup diagram is as followsConfigurationRouter>enable Entering privileged modeRouter#conf t into global configuration modeRouter (config) #interface g0/0 access interfaceRouter (config-if) #int G0/1Router (config-if) #ip address 192.168.1.254 255.255.255.0Router (config-if) #no shutdownRouter (config-if) #exitRouter (config) #line vty 0 2 Set the number of remote connection terminalsRouter (config-line) #password 123 Setting the remote connection passwordRouter (Config-l