values
0x2142: Starting from flash, but not using the configuration file in NVRAM (for password recovery)
0X2101: Booting from boot RAM, applied to update system files
0x2141: Starting from boot RAM, but not using the configuration file in NVRAM
Where the third digit of the C bit is 1, the break key is turned off, whereas the break key is turned on.
0x141: Closes the break key, does not use the configuration file in Nvram, and starts from a syst
asked the boss, and he did not know it. It is said that the password was changed by the supplier. So the phone supplier asked the password for a long time and got a reply: at that time, the changed employee quit, and now he does not know the password .... dizzy .. too irresponsible .. there is no way to ask for your own, for your own, for google... (Although I h
Cisco router is one of the widely used computer network communication devices. In daily operation, the router plays an important role in the whole system, and it is unavoidable to operate it frequently. For example:
Modify router configuration files, diagnose network failures, and so on. Once the
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 call C
DescriptionThis document describes the password recovery procedure for the Cisco 800.
Step-by-Step ProcedureAttach a terminal or PC with terminal emulation to the console port of the router. Use the following terminal settings:9600 baud rateNo parity8 data bits1 stop bit
The required console cable specifications are described in Cabling Guide for RJ-45 Console an
Ciscoswitch password reset steps1.PCMachine has Breakmethod of the key1.1Interrupt Device startup Ctrl+break keyStep: Turn off the device and restart:Self decompressing the image: Press the Ctrl+break key when you start the device ##########################Monitor:command "Boot" aborted due to user interrupt1.2change the value of the configuration register to 0x2142(Two register values:0x2102 (Normal),0x2142 (do not read the saved configuration))s
-Negotiate with(can be automatically negotiated or manually configured, the routing protocol cannot be transferred at both ends in the case of Autonegotiation)4 , client (config-if) #ipmtu 1492-------------------- mtu value because pppoe data in encapsulation, A pppoe 8 5 , Client (config-if) #encapsulationppp------------- encapsulated into PPP6 , Client (config-if) #dialer pool7 , Client (config-if) #pppauthentication chap callin8 , Client (config-if) #pppchap hostname admin19 , C
The steps below describe how to recover a password on the Cisco 600 series of routers.
Step 1: Enter RMON mode.
To do this, follow the steps below:
Connect your PC to the console port of the router.Set your Terminal Access Program (such as HyperTerminal in Windows) to the following settings:Baud rate: 38400 bps recommended (standard 9600 bps possible)Data bits: 8Parity: NoneStop bits: 1Flow control: NonePow
This article mainly introduces the Storage Classification of Cisco routers, as well as four execution modes and password settings for different access methods. I hope this article will help you.
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 res
Cisco 2800 Password cracking1. Restart the router byCtrl + BREAK +FNKey to enter monitoring mode2. Modify the Register value to change the start orderRemmon>confreg 0x21423. Restart Routing in monitoring modeRemmon>resetLook, here we go into the system. User mode no passwordRouter>enablerouter#Copy Start Running-configDestination filename [running-config]?552 byt
1. CISCO's most basic experiment and password settingsGlobal passwordR1 # configure terminalR1 (config) # enable password XXXXConsole Logon password:Router # config terminalRouter (config) # line console 0Router (config-line) # exec-timeout 0 0 // set the console timeout value to zero, that is, never time out. The default value is 10 minutes.Router (config-line) # logging synchronous // block annoying conso
shown in Figure 1.
It shows that there are multiple wireless networks available, double-click Tp-link to connect to the wireless router, and then connect successfully.
(2) Open IE Browser, enter IP address: 192.168.1.1 (wireless router default LAN IP address).
(3) Login to the wireless Router Management interface (username: admin,
multiple available wireless networks, double-click the TP-LINK to connect to the wireless router, then the connection is successful.(2) Open IE and enter the IP address 192.168.1.1 (the default lan ip address of the wireless router ).(3) log on to the wireless router Management Interface (username: Admin, password: Ad
Have you ever encountered this problem in daily network management and maintenance: Because you forgot your password, you will be forcibly rejected by the vro or vswitch, parameter resetting and information statistics are not allowed. The following describes how to clear passwords for several common and important network devices ".
Clearing Cisco router configura
In the day-to-day management and maintenance of the network work, you have encountered this phenomenon: because forgot the password, you are the original kind of "friends"-routers or switches forcibly refused to the door, unable to reset the parameters, information statistics. Here are some common and important network equipment password removal method to talk about my little "tips."
application password so that the next boot will not prompt for a privileged password;
Select Exit and reboot.
After the router restarts, press the ENTER key directly into the privileged mode, skip the entry of the privileged password, this time in the global configuration mode to enter the Enable
The software fault in the equipment fault occupies a very large proportion, and the network security in software fault is the most important problem. In general, these devices have problems, then all the computers of the enterprise staff will not be able to smoothly access the Internet, the need to protect the router and switch safe operation, you must add a high level of security password for the routing s
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