ccna rack

CCNA Experiment three routers configured as PCEnvironment: Windows XP, GNS3.0.7Steps:1. First Open GNS Create the following topology:650) this.width=650; "src=" Http://hi.csdn.net/attachment/201010/26/0_1288078209y3RW.gif "/> right-click to view r1 and PC console Span style= "font-family: ' The song Body '; > port: r1:2000 PC : 2002 650) this.width=650; "src=" Http://hi.csdn.net/attachment/201010/26/0_1288078318ve3X.gif "alt=" http://

CCNA Experiment 13 STP the Load Balancer Environment: Windows XP , GNS3.0.7 Purpose: Learn how to Achieve load balancing in STP Description: The load balancing of STP is actually the use of another blocking link in the loop to share the load in the network steps: Open the GNS to build the project with the following topology:650) this.width=650; "src=" Http://hi.csdn.net/attachment/201011/21/0_12903238230y3w.gif "/>Note: to SW1 and the SW2 Two devi

CCNA Experiment 15 Protection of the STPEnvironment: Windows XP ,Packet Tracert 5.3.Purpose: To understand how to protect STP NetworkDescriptionBPDU Guard (BPDU protection ):BPDU protection is typically used in PortFast mode. after configuring BPDU protection on a port with PortFast mode enabled , receiving BPDUs will turn the port into a err-disable state . (portfast is typically usedon ports in Access mode)Root guard: The purpose of root protection

Chapter 1: Internetworking Ccna Chinese Reading Notes Cisco Certified Network Associate 640-801 icnd Course Notes Chapter 1 Internetworking Internetworking basic Dividing a large network into several smaller networks is called network segments, which are completed by routers, switches, and bridges. The possible causes of LAN congestion are: 1. Too many hosts exist in one broadcast domain) 2. broadcast storm 3. Multicast 4. l

Tags: Cisco CCNA router Password managementfor device security, the device administrator typically sets the user name and password for the device. Here's how to configure 3 passwords, with emphasis in the middle.Username Test password Cisco//This is to set up a layer of accounts and passwordsEnable password 123// This is the Setup admin passwordRouter (config) #line console 0// configuration control PortRouter (config-line) #password 456// Configure p

Release date:Updated on: Affected Systems:CertificationKits CiscoKits ccna tftp Server 1.0Description:--------------------------------------------------------------------------------Bugtraq id: 49045 CiscoKits ccna tftp Server is a multi-threaded Cisco IOS upgrade, file backup, Cisco certification exam preparation, upload and download IOS graphics and configuration tools. CiscoKits

March 2016 2 August-April 1st Ivy Alliance Training Center (Avtech Institute of Technology), for a mobile company IT staff of 5 days of CCNA Routing and Exchange practical training class successfully implemented! This training arrangement is held in the beautiful Shenzhen.CCNA Certified professionals have the knowledge and skills to connect to remote sites over a wide area network, eliminate basic security threats, and understand the requirements of w

.---------------------------------------------------------------, the commands for setting the clock frequency and enabling the serial interface are:Router (config) #interface Serial 0/0/0Router (config-if) #clock rate 56000Router (config-if) #no shutdown---------------------------------------------------------------Once you have changed your router configuration, remember to use the show command to verify the accuracy of your changes, and then save the changed configuration as a startup configu

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 the address configuration can be tested,whether

En Conf t Hostname SW1 Username CCNA Password CCNA No IP domain-lookup Service Password-encryption Enable Secret Cisco Line con 0 Login Local Logging synchronous Exec-timeout 0 0 Line vty 0 4 Login Local Logging synchronous Exec-timeout 0 0 int VLAN 1 IP addr 192.168.1.1 255.255.255.0 No shut IP Default-gateway 192.168.1.254 Show run Copy Run start

CCNA Authentication-basic network knowledge-1-3 ensures confidentiality by allowing intended and authorized recipients (individuals, processes, or devices) to read data to maintain data privacy. Use a powerful user authentication system, a password that is difficult to guess, and frequent password changes to restrict access to stored data on communication and Internet devices. Encryption of content ensures confidentiality and reduces unauthorized disc

CCNA Study Notes 2 --- EthernetEthernet ◆ type: 1, EthernetII; 2, 100 standard Ethernet (10 Mbps) Fast Ethernet (1000 Mbps 10 Gbps 40 Gbps, using CSMA/CD access control, all are in line with 802.3 ◆ L2 network Classification 1, point-to-point: WAN network serial port 2, multi-point} ---- Ethernet broadcast} ---- Frame Relay does not support broadcast ◆ collision over Ethernet, when the two nodes transmit data at the same time, the frames sent from the

CCNA Study Notes 4 --- vro Startup Process and register value◆ Role of the vro register value (after understanding, used to adjust the optimization of the vro switch work) power-on self-check (post) load and run boot guide microcode to search for IOS image) file loading IOS image file search configuration file loading configuration file normal operation hex 2102 two Bytes 8 bits, sixth adjustable process: ◎ after the boot self-check is successful, rea

During the preparation of the CCNA, the route has been in a state of confusion. Therefore, keep a record of your daily study notes so that you can view them later.There are two configurations for static routes, one is a static route with the next-hop address, and the other is a static route with a send-out interface.For static routes, the usage is as follows:One, the network contains only a few routersSecond, the network only through a single ISP acce

ports. Assign an IP address to VLAN Ten and enable it. Refer to the addressing Table. Configure the default gateway according to the addressing Table. Configure VLANs on S2. On S2, create VLAN 10. Assign Student as the VLAN name. Create VLAN 20. Assign Faculty-admin as the VLAN name. Configure F0/1 as a trunk port. Assign ports F0/11 and F0/18 to VLAN and configure both F0/11 and F0/18 as access ports. Assign an IP address to VLAN Ten and enable it. Refer t

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650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/8B/7E/wKioL1hPzwWwPFqgAAGUAvCBHxo588.png "title=" QQ picture 20161213183532.png "alt=" Wkiol1hpzwwwpfqgaaguavcbhxo588.png "/>Test center of the subject: Changes in the address of the source Ip/mac in the process of data communicationTest instructions: In the box shown, Route1 's IP address and MAC address of the corresponding information, as well as data frame information; The problem is that you can infer what route1 is going to do with

The initial command for routing configuration-CCNA takes notes when I used to study NA, now I have time to share with you ==================================== ========================================================== =====================www.2cto.com show hosts show current host name configuration show sessions show current outgoing TELNET session clear line XXX clear line

=" wkiol1pon6mbx42paaga_e9n2zg502.jpg "/> First, obtain the gateway information (non-private address). After telnet, obtain the user's MAC address (sho ARP | include user IP address) based on the ARP table ), 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/40/1E/wKiom1POOgmjnOhpAABNrTBnX3M812.jpg "Title =" q2.jpg "alt =" wkiom1poogmjnohpaabnrtbnx3m812.jpg "/> Obtain the port number (sho Mac-table-address Add User Mac) 650) connected to the vswitch based on the user's MAC address.