used cisco router

This article describes in detail how to skillfully set the speed limit for commonly used Cisco routers, and provides detailed operation steps. I hope this article will help you. The so-called speed limit is to set the ACL Access Control List on the router) to block the port used by the Service, so as to prevent the nor

As the core device of network communication, Cisco routers are widely used. The following is my experience in practice: Control port interface practices and connections Connect one end of the control cable RJ45 in the Cisco2500/1000 series router accessories to the Cisco CONSOLE port, and the Cisco7000/4000 series

3550 route function for Communication (with vswitch configuration ): Hostname Cisco3550 ! Interface GigabitEthernet0/11 description Connect to PC ! Interface GigabitEthernet0/12 description Connect to SERVER switchport access vlan 2 ! Interface Vlan1 P address 1.1.1.254 255.255.255.0 ! Interface Vlan2 P address 2.1.1.254 255.255.255.0 If you do not need permission restrictions, but want to prevent IP address conflicts, the best solution may be to use DHCP. the DHCP server can set parameters suc

I. Basic configurations of Cisco 2950 vswitches Switch> Switch> enable Switch # Switch # vlan database (entering vlan maintenance mode) Switch (vlan) # vlan 2 name vlan2 name vlan 2 vlan2) Switch (vlan) # vlan 4 name vlan4 name vlan 4 vlan4) Switch (vlan) # exit. Note that exit is valid only when exit is enabled. You cannot exit directly with ctrl + z or end because the configuration cannot take effect !) Switch

Cisco router Startup ProcessThe Startup Process of a Cisco router is divided into four main stages: 1. execute POST 2. load the bootstrap program 3. search for and load Cisco IOS software 4. find and load the startup configuration file, or enter the setup Mode 1. executing P

Before giving you a detailed introduction to the Cisco router ACL, first let everyone know about the ACL, and then give a full introduction to the mask to block the scam attack. Wildcard-mask wildcard mask in the Cisco router ACL Access Control List ). Brief: The wildcard mask (or anti-mask)

CISCO PT Simulation Experiment (16) Router redistribution configurationExperimental Purpose :Learn how to configure router redistributionLearn to see routes generated by routing redistribution learningExperimental Background :with the expansion of the company's network, the company installed a number of routers and run a variety of routing protocols, including th

Everyone knows that the Cisco router ACL plays an important role in the security policy of the Cisco router. Therefore, it is essential for everyone to master these knowledge points. In fact, this content is involved in many places. Access List) is an ordered statement set. It is a Sort table that allows or rejects pac

Cisco router. Similar to a computer, a vro also has memory and an operating system. In a Cisco router, its Operating System is called Internetwork Operating System (IOS. Vro memory mainly includes: ROM: read-only memory, saving boot diagnostic programs, boot programs and a copy of the IOS in use; software upgrade in R

Which command standard do you want Cisco to use on each vro? Each administrator configures the commands of each vro correctly. The ten commands in this article are what I think you should configure on each vro, with no special order. 1. configure a Logon account on the vro I strongly recommend that you configure a real user name and password account on the vro and vswitch. This means that you need a user and a password to gain access. In addition, we

Configuring a password for a Cisco router is a headache for common users. Here we will teach you how to configure a password for a Cisco router to bypass the vulnerability, cisco PIX, ASA, and FWSM are popular firewall devices that provide firewall services that can filter s

CISCO PT Simulation Experiment (18) router DHCP server and relay configurationExperimental Purpose :Master the configuration method of router DHCP serverMaster the configuration method of DHCP relay AgentMastering the DHCP protocol and the principle and implementation process of the relayExperimental Background : with the expansion of the company's network, more

Everyone is very interested in new knowledge. Many may not be familiar with Cisco router IOS. This article is a brief introduction to Cisco router IOS, hoping to give you a basic understanding of IOS software. After decades of development, from the first four-node ARPANET to the ubiquitous Internet, computer networks h

There may be a lot of people who don't know about Cisco router configuration. Here we mainly analyze the Cisco router configuration commands. After reading this article, you will certainly have a lot of GAINS, I hope this article will teach you more things. Mode Conversion command for

This utility When a Cisco router forgets or loses the enable password, there are two methods to restore it, depending on the series of products you are using. Method 1 You can use this method to restore the following vrouters: cisco 2000 Series, 2500 series, 3000 series, Cisco 680 series with 4000x0 a6l a CPU, and 10.0

1. Preface A large number of Cisco routers are used in Jiangxi IP networks. Administrators usually use Telnet to remotely log on to the vro for routine maintenance. Because Telnet, FTP, and other network service programs use plain text transmission passwords and data in the network, their security cannot be effectively guaranteed. Once the Administrator's user name and password are intercepted by someone w

selection update dataDebug ipx routing activity displays information about route selection protocol (RIP) Update packetsDebug ipx sap displays SAP (Business announcement protocol) Update packet informationDebug isdn q921 shows the access process of the data link layer (Layer 1) on the D-channel ISDN interface of the router.Debug ppp displays the business and exchange information during the implementation of PPPDelete FileDeny is used to set condition

Vro is a commonly used network device. I believe everyone knows the importance of backing up the cisco router configuration file. Next we will introduce how to use the COPY command to back up the cisco router configuration file, and how to COPY and back up the

A router is a commonly used network device. How do we install a router for beginners? How can I maintain a fault? The following article will give you a detailed answer. Installation steps: Step 1: control port connection First, connect one end of the control cable RJ45 in the CISCO2500/1000 series router accessories to

Password Recovery principle of the Cisco router-the Cisco router stores several different configuration parameters and stores them in different memory modules. The introduction is as follows: ---- · internal memory type ---- Cisco2500 series routers have five types of memory: ROM, flash memory, immutable RAM, and share