cisco router password change

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For beginners, refer to the CISCO router tutorial.

It is very important to know some common knowledge about CISCO routers. Here we mainly explain the CISCO router tutorial, which provides a detailed analysis from configuration to access methods. This document uses Cisco2620 as an example to describe how to configure the vro and remote access, this article discusses how to use the DHCP service function of the inte

Describes how to set the dialog process in the Cisco router manual.

the dialog setting process. First, you can see the current status of each port: First, wouldyouliketoseethecurrentinterfacesummary? [Yes]: AnyinterfacelistedwithOK? Value "NO" doesnothaveavalidconfigurationInterface, IP-Address, OK? Method, Status, Protocol, Ethernet0, unassigned, NO, unset, up, up, Serial, 0 unassigned, NO, unset, up, up. Then, the vro starts setting global parameters: Configuringglobalparameters: 1. Set the vro name: Enterhostname [Router

Describes how to configure a Cisco router through an instance

. Cisco private protocols, such as VPN, are not required ), this article provides a configuration example for Cisco router configuration and Huawei router OSPF serial port connection for analysis. 2. Interconnection Iii. configuration file description Currentconfiguration: ! Version12.1 Servicetimestampsde

Use cisco rommon to maintain a router

For many beginners, using cisco rommon to maintain a vro, the ROM Monitor of a cisco router is often unfamiliar or even daunting. The reason is simple. First, we do not often use this mode, I am not familiar with the related operations. Second, Operation errors in ROM Monitor mode often cause fatal damage to the vro (such as destroying the IOS file in flash, lead

How to back up Cisco router configurations

For common users, it is necessary to learn how to back up the Cisco router configuration file to ensure the security of our routers. In recent years, many cities have established urban financial networks. The construction of these networks has promoted the construction of electronic finance in various regions. Vro is a key device of the city financial network and a bridge to the computer network. It can not

Cisco router basic knowledge-storage details

Cisco router has become a commonly used network device, but we are not very clear about its storage classification. Here we will introduce it in detail. Memory category: 1: RAM: Random Access to memory, equivalent to computer memory 2: ROM: read-only memory. Some microcodes used to start and maintain the router are resident in the ROM. 3: FLASH Memory, equiva

Full explanation of DHCP configuration on a Cisco Router

A Cisco router uses Cisco 3620 as the ios dhcp Server. the IP address of the fastethernet0 port connected to the Intranet is 192.168.1.4, And the L2 Switch uses two Cisco 2950, A layer-3 Switch uses a Cisco 3550. There are two VLANs in the network. To simplify the descriptio

Example: solve the serious packet loss problem of the Cisco Router

network respectively. Then, it is found that B1 has a normal response, and the response rate of B2 is between 20% and 24 ~ In computer A3 (IP: 10.20.12.13/24), ping the computer B1 and B2 by using the ping command. The response shows that the connection is normal and the packet loss rate is 0.(2) Change the IP address of computer A3 to 10.20.12.12/24 before testing. The ping result is the same as that of computer A2 in (1.(3)

In-depth explanation of Cisco router default settings

packets to pass through by default. The second method modifies the default value of the router, change it to the same default as the CISCO device to block all packets. 1. Add ACL rules directly After setting all the ACL statements on the Huawei device, use "rule deny ip source any destination any" to discard packets that do not comply with the rules. 2. Modify t

Step by step teach you how to configure a Cisco Router

Many people may not have a special understanding of Cisco router configuration, so I have studied the detailed knowledge of Cisco router configuration. I will share it with you here, hoping it will be useful to you. Have you ever encountered a situation where you have modified the

Cisco router Startup Process

When the cisco router is powered on normally, perform the following steps: 1. Test the router hardware When a cisco router is started, a hardware self-check program POST is initiated. This program checks basic hardware functions including CPU, memory, and network interface

Configure a cisco router for ADSL Access

This article uses a specific example to illustrate how to configure the access to ADSL through the vro. What problems should we pay attention to during access? The following articles will benefit you a lot. Note: In this case, a common adsl modem and a cisco 25001841) router (dual Ethernet port) and IOS 12.2 (15) T need to be used to connect to the China Telecom adsl PPPoE, able to achieve LAN Internet shar

How to configure and install a Cisco Router

Here we will mainly introduce the configuration and initial installation of Cisco routers. Describes how to configure Cisco router settings and remote access, this article discusses how to use the DHCP service function of the internal network to allocate address information for users who remotely dial in and how to troubleshoot common vro faults. 1. Initial insta

Cisco vro local password cracking

/Z.Router (config) # enable password 123Machine (config) # config-register 0x2102Router (config) # exitRouter # writeBuilding configuration...[OK]Router #After the password is cracked, set the password according to the following password policy:Note the following points when

For beginners! Featured CISCO router tutorials

Many people are not very familiar with the installation and configuration of CISCO routers. It does not matter. Here we will introduce the classic section of the CISCO router tutorial, this gives you a better understanding of vro configurations. This document uses Cisco2620 as an example to describe the configuration and remote access configuration methods in the

Reset the enable password for a cisco Route

(you can also use the enable serect "changepassword" command to change the superuser password ). (6) type the following command to restore the original register: "Router (config) # config-reg 0x2102"; "Router (config) # ctrl-z "; "Router (config) # wr" storage disk. (7) res

Debugging a Cisco Enterprise-class Router

1. Use the Cisco router Debug cable to connect the router's console interface and the computer's serial port, turn on the router after powering on, and then 1. In Windows XP, initial debugging via the HyperTerminal logon router, as shown in network topology 7-8650) this.width=650; "title=" QQ picture 20150320165214.png

Configure a Cisco router in one minute

The importance of vro configuration is self-evident. Here we mainly analyze the Cisco router configuration statements in detail, and share them with you here, hoping to help you. Introduction to Cisco router configuration Cisco ios operating environment. ROM monitor>

What about Cisco Password loss

state (the system no longer requires you to enter a super password); "Router#show startup-config" displays configuration parameters, Be particularly careful to remember the password you see (you can also change the superuser password by using the Enable Serect "ChangePasswo

Cisco router common configuration commands Daquan A-X

encapsulation method used by the serial port or ISDN InterfaceEncapsulation sap specifies that the Ethernet 802.2 format Cisco password used on the network segment is SAPEnd exit Configuration ModeErase deletes flash memory or configures CacheErase startup-config Delete content in NVRAMExec-Timeout: specifies the time that the exec command interpreter has waited before user input.Exit to exit all configura

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