cisco router password recovery

DescriptionThis document describes how to recover a password on a Cisco 1020 router. Since the Cisco 1020 router is often not physically secured, to perform a password recovery you must

This test configures remote management of routers and switches within the LAN, routers for Cisco 2621XM, switches for Cisco 2960Switch configuration:Switch>enaSwitch#confSwitch#configure TSwitch (config) #interface vlan 1Switch (config-if) #ip address 192.168.2.10 255.255.255.0Switch (config-if) #exitSwitch (config) #ip Default-gateway 192.168.2.100Switch (config) #enable secret 123Switch (config) #line vty

A Cisco router is a commonly used network device. But what is the storage type of a vro? We will give you a detailed introduction through this article, and hope to have a deeper understanding of Cisco routers after reading this article.Memory category:1: RAM: Random Access to memory, equivalent to computer memory2: ROM: read-only memory. Some microcodes used to s

Use the home ADSL line and use the CISCO router to build the PPPoe Server so that the PC can access www.2cto.com R1 (config-if) # do sh runBuilding configuration... Current configuration: 1470 bytes! Version 12.4 service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption! Hostname R1! Boot-start-markerboot-end-marker

1. Reliability and Line safetyReliability requirements are presented for fault recovery and load capability. For routers, reliability is mainly reflected in the interface failure and network traffic increase in two cases, for this reason, backup is one of the indispensable means of routers. When the main interface fails, the backup interface is automatically put into operation to ensure the normal operation of the network; When the network traffic inc

The vro command auto secure is easy to use, and can disable some insecure services and enable some secure services. Here is a summary of this command. (Note: ios 12.3 (1) or later versions are supported) Summary: 1. Disable some global insecure services as follows: FingerPADSmall ServersBootpHTTP serviceIdentification ServiceCDPNTPSource Routing 2. enable some global security services as follows: Password-encryption serviceTuni

The user checks network security and requires SSH logon to the core device. Previously, the device used Telnet logon, and the user name and password are transmitted in plaintext, which does not meet the security check requirements. In fact, the SSH login configuration is very simple, mainly divided into the following steps: 1. Configure the Domain Name Sd_core_r7600 (config) # IP domain-name sdcore 2. generate an SSH key Sd_core_r7600 (config) # crypt

for Cisco's enterprise-class routers and switch products, regular debugging, familiar with the operation of the product principles and business processes. This will be easy to deal with when you encounter the Internet and data failure. The following small series to you recommend the router debugging simple steps: 1. Use the Cisco router Debug cable to connect th

The Cisco switch password recovery security and the steps that should be followed. There are many things worth learning about the Cisco switch password recovery. Here we mainly introduce how to use the

The CISCO router performs a bridge on the instance router # sh ru Building configuration... www.2cto.com Current configuration :! Version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption! Hostname router! Enable secret 5 $1 $

Restore factory settingsIn privileged mode, enter this command:router# Erase startup-config Restore factory settings Router#relod Rebooting the system650) this.width=650; "style=" width:334px;height:252px; "Title=" B1 (1). png "src=" http://s3.51cto.com/wyfs02/M02/5B/ 98/wkiom1unhf-iysyyaahgpff0iew611.jpg "width=" 588 "height=" 244 "alt=" wkiom1unhf-iysyyaahgpff0iew611.jpg "/>2. Modify the privileged passwordConfiguration command:Rommon 2〉confreg

, dynamic address translation, and multiplexing dynamic address translation. The following example uses a Cisco router.1. Static address translationStatic address translation performs one-to-one conversion between the internal local address and the internal legal address, and specifies the legal address to which the conversion is required. If there are WWW servers or FTP servers in the internal network that

When we use Telnet to log on to the device, the user name and password are transmitted in clear text, in order to ensure the security of the data, we recommend the use of SSH login device. The following is the configuration of the Cisco router SSH:1. Configuring hostname and Domain-nameR1 (config) #hostname R1R1 (config) #ip domain-name frame.com2. Generate the k

Router#show Run Building configuration ... Current configuration:1115 bytes ! Version 12.2 Service Timestamps Debug Uptime Service Timestamps Log uptime No service password-encryption Hostname Router ! No logging on Enable Secret 5 $1$OYEO$B.DP73YBQILQNQSUV/WMX1 ! IP Subnet-zero ! ! ! VPDN Enable ! Vpdn-group 1 Request-dialin-----request-diali

First, the experimental topologySecond, the specific configurationRouter (config) #do sh runbuilding configuration ... Current configuration:604 bytes!version 12.4no service Timestamps log datetime MSECNO service timestamps debug datetime MSECNO Service Password-encryption!hostname router!ip dhcp excluded-address 192.168.1.1!IP DHCP Pool ABCNetwork 192.168.1.0 255.255.255.0Default-

. The internal local addresses 10.1.1.2, 10.1.1.3, and 10.1.1.4 use static address conversion. The valid internal addresses are respectively 192.1.1.2, 192.1.1.3, and 192.1.1.4. 　　 Vro2501 Configuration: 　　 Current configuration: 　　 Version 11.3: 　　 No service password-encryption 　　 Hostname 2501 　　 Ip nat inside source static 10.1.1.2 192.1.1.2 　　 Ip nat inside source static 10.1.1.3 192.1.1.3 　　 Ip nat inside source static 10.1.1.4 192.1.1.4 　　 Inte

There are too many Qos information on the Cisco Router Traffic Control instance, but many of them are not practical. I have talked about a lot of theories. The following are the configurations on the routers of a subsidiary for your reference. In fact, as long as you understand the meaning of NBAR, CBWFQ, and WRED, traffic control can be configured as needed. Www.2cto.com Description: A subsidiary uses a 2

R1 (config) #int s1/0R1 (config-if) #ip address 192.168.1.1 255.255.255.0R1 (config-if) #clock rate 64000 Set clock frequencyR1 (config-if) #no shutdownR1 (config-if) #encapsulation PPP-enabled PPP authenticationR1 (config-if) #ppp pap sent-username R2 password Cisco authenticated user and passwordR2 (config) #username R2 password CiscoR2 (config) #int s1/0R2 (co

How to configure remote logon for a Cisco router IP Address Configure the vro IP Address Run the command ip address x. x to configure the ip address. The command is as follows:Router2800> enable (in privileged Mode)Router2800 # configure termial (entering global configuration mode)Router2800 (config) # int f0/1 (enter Interface Configuration Mode)Router2800 (config-if) # ip address 192.168.0.1 255.255.255

First, let's look at the Flash files in the Cisco router. View with the show Flash command.At this point, you can see that the Flash version is C1841-ipbasek9-mz.124-12.binBelow we delete this FlashAfter deleting the flash, we can see that flash is gone.At this point, restart the router, the router will not restart.Bel