ccie routing and switching

reserved or registered for them, while others may use dynamic ports that are not registered. Because the UDP header uses two bytes to hold the port number, the valid range for the port number is from 0 to 65535. In general, a port number greater than 49151 represents a dynamic port.In fact, TCP and UDP is the basic transport protocol, based on the implementation of the application layer protocol may have a fixed port number, such as the FTP service for TCP communication by default, Port 21st, s

Manage network devices through WEB H3C routing and switching devices provide better WEB management support. However, you must configure the routing and switching devices before using WEB-based configuration management. The following uses H3C S3100-8C-SI equipment as an example to describe its related configuration, net

; Configure the password for Telnet, which is the level passwordEnable secret 0 star-> Configure enable password, default is level 15 password2.4: Telnet TelnetOn the three-layer switch:Telnet 1.1.1.17You are prompted for a telnet password, which we set for the starEnableYou will be prompted to enter the Enable password, which we set for starLogin successfulSimilarly, verify on another switchThree: Experiment650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M00/88/71/wKioL1f4h0fA-iYZAAAGS6u

The11Day: routing and switching Experiment Lab01:DHCPService Lab Objectives Dynamic DHCP Allocation Protocol Lab Environment Install a Cisco simulator computer 650) This. width = 650; "width =" 465 "Height =" 312 "Title =" image001.png "style =" width: pixel PX; Height: 288px; "src =" http://s3.51cto.com/wyfs02/M02/45/BB/wKioL1PqKKaRC3csAACGSxKdXo0633.jpg "alt =" wkiol1pqkkarc3csaacgsxkdxo0633.jpg "/> Lab

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

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

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

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

The following is a combination of project consolidation how to achieve the spring data routing dynamic switching, divided into three parts, 1. configuration file. 2.java class. 3. Summary One: Configuration file Dataant.properties: Driverclass1=oracle.jdbc.driver.oracledriver Jdbcurl1=jdbc\:oracle\:thin\:@136.160.40.36\:1521\:crmtemp db.user1=crm_app db.password1=abc123 driverclass2=oracle.jdbc.driver.ora

Tags: local disable NIC name sys mod CONF requires netmask technology sharingTo execute a command in command-line mode:This is the host's routing table, the host to access the Internet, you must set the legal IP parameters, including: Ip/netmask/gateway/route/dns IP and host name, etc.Ip/netmask is used to confirm the host network, and to determine whether the target host and the host is in the same network;Gateway is mainly used for communication bet

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 the IP network. By using the same virtual IP address and virtual MAC address, two or more u