cisco router rommon mode problem

1. Preparation Tools Cisco TFTP server, HyperTerminal, iOS files iOS files are not easy to find, you need to look at the hardware version, as well as the size of ROM RAM, to my Cisco 2621XM for example (with two fastethernet),Start looking for a few 2600 of iOS, the brush is not correct, the problem of unrecognized network interface, can not be configured, ther

Cisco 7609 Router boot rommon modeCisco7609 boot into Rommon 1 > Mode solution:Rommon 2 > Dir disk0: Check if the file existsInitializing ATA Monitor Library ...Directory of Disk0:2 120962020-rw-c7600s72033-advipservices-mz.122-33.src3.binRommon 3 > Confreg 0x2102 Correcting

, the first file is not the correct iOS file, the second is the correct iOS file. It's a lot easier. Set the startup mode to 2 with the Confreg command, and then manually boot from the correct iOS: Rommon 2 >boot Bootflash:cat4000-is-mz.121-11b.ew Rommon reg:0x30004180 Running diags ... ... When the boot is finished, enter the iOS interface and modify the s

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 Monito

When the iOS corruption in router needs to be restored, Ctrl+break (Packettrace is CTRL + C) When the router starts, enters Rommon mode, and the command prompt changes to: Rommon 1>Then enter the following command:Rommon 1>IP_ADDRESS=A.B.C.D//router's current IP addressRommo

It was started and entered the Rommon mode because the system could not locate the boot file and could not configure Confreg 0x2102/confreg 0x2142 You can do this only through the following steps Rommon 1 >confreg Configuration Summary: => load rom after netboot fails => Console baud:9600 => autoboot from:commands specified in ' BOOT ' environment variable

Background introduction:Small series bought a 2-hand Cisco routing, after the Router#eraser start-config command, found that there is still a lot of extra stuff in the flash,650) this.width=650; "title=" 1.jpg "src=" Http://s3.51cto.com/wyfs02/M01/6F/29/wKioL1WTl82RNCmpAAKVcejov7g373.jpg " alt= "Wkiol1wtl82rncmpaakvcejov7g373.jpg"/>Ran the Router#eraser Flash: co

There are still many things worth learning about the Cisco router configuration mode. Here we will mainly introduce how to enter the detailed steps of the Cisco router configuration mode. In the

The command line port of a cisco router uses a hierarchical structure, which requires logging on to different modes to complete detailed configuration tasks. From a security perspective, cisco IOS divides EXEC sessions into USER mode and privileged mode. Features of the USE

There are many things worth learning about the configuration mode of a Cisco router. Here we mainly introduce the mode of user execution and privilege of a Cisco router. Ping is the most commonly used troubleshooting command. It c

This article mainly uses an example to explain in detail how to solve the packet loss problem caused by CISCO router faults? The following article gives me a detailed answer. Recently, some people in my department (Department A) reported that they could not access the network of the higher-level department (Department B. I use the ping command from the computer A

One. Test the topology:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/CA/wKiom1WH46fhBjvJAADX2zoss3k937.jpg "title=" TP1. JPG "alt=" Wkiom1wh46fhbjvjaadx2zoss3k937.jpg "/>Two. Test ideas:A. Enable resolution by IP NAT without setting the direction---this way can be accessed directly from the public IP address, or can be accessed by domain name method---unfortunately Cisco is different iOS, some although have IP nat enable, but do not re

... OpenUser Access VerificationPassword:R4>show UsersLine User Host (s) Idle location0 Con 0 202.100.2.4 00:00:00*131 vty 1 Idle 00:00:00 202.100.2.4Interface User Mode Idle Peer AddressR4>---automatically modifies the DNS record back package (similar to the ASA's DNS rewrite) when accessed through a domain nameR2 (config) #ip DNS serverR2 (config) #ip host R4.yuntian.cn 202.100.2.4R5 (config) #ip domain-lookupR5 (config) #ip name-server 202.100.2.2

we are using Console connect the router and the computer, start the router and use the Putty connect to the router's console ( Console ), it is recommended that you first configure the hostname of the router ( hostname ) To facilitate identification, configure the privileged mode ( Enable ) Password and vty ( telnet )

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) used in the

Cisco routers are widely used in network interconnection. Among them, 2500 series routers are widely used in low-end users. So what if you accidentally forget the superuser password of the 2500 series router? Don't be afraid, as long as you can restore as follows:Preparation: a computer running Terminal simulation program can start a Super Terminal in Windows 95/98), and the microcomputer serial port COM1/C

Vue-router post 404 problem with history mode refresh, vue-router404 Because our application is a single-page client application, when using the history mode, the URL is like a normal url and can be directly accessedhttp://www.xxx.com/user/idBut because the path set by vue-router