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Many junior network administrators ignore security settings when using Cisco routers, and the following three are ideal for novice users to configure network security when using Cisco routers.
One, the security configuration of the router "access control"
1, the administrator who can access the router is strictly con
of the iOS that the router is running on. Enter show Cisco router configuration must enter privileged mode. You can do this by using the Enable command. Privileged mode is usually password protected unless the Cisco router is c
network management software, such as Cisco CiscoWorks and HP OpenView.4. Cisco configmakerConfigmaker is a free router configuration tool developed by Cisco. Configmaker configures the vro in a graphical manner, and then downloads the configuration to the vro through the network. Configmaker requires the vro to run on
can run normally. However, it makes sense to rename a vro and uniquely identify it. Example:
Router (config) # hostname Router-Branch-23
In addition, you can configure a domain name on the router so that it knows which DNS domain it is in. Example:
Router-Branch-23 (config) # ip domain name TechRepublic.com
3. Set a
configuration change solutions. With Cisco SDM, administrators can use SSL and SSHv2 protocol connections to configure and monitor routers remotely. Using this technology, you can establish a secure connection between your browser and vro through the Internet. When deploying a branch office, you can configure and monitor the Cisco SDM
systems of Cisco router IOS, which may expose sensitive information. This vulnerability allows a low-level user (for example, a user who does not know the 'enable' password) to use the system to view some information, in theory, this information should be visible only to users who know the 'enable' password. This info
Tags: requires domain lock login do not need to enter the password secret process network failure PACExperimental 1:cisco Router base configuration1. Operating mode of the router:Router> user mode, typically used to view statistics, but cannot modify the router's settings.router# Concession mode, you can view and modify the configuration of the
This article will discuss the importance of maintaining the password security of a Cisco router, explain the Cisco router mode, and show readers how to configure five passwords for a vro to protect network security.
Causes of vro security protection using passwords
First, as
commands generated by Cisco SDM before providing a router configuration change solution. Cisco SDM helps administrators use the Secure Sockets Layer (SSL) and vro security configuration (SSHv2) Protocols to connect to the remote location to configure and monitor vro1 Fig 1 ). Using this technology, you can establish a
Configuration mode for Cisco routers
Configuration mode
Prompt
Enter command
Description
User mode
Route>
User mode is the default mode when the router starts, provides limited access to the router, allows for non-destructive operations such as viewing the configuration parameters of the
" and the vro will be reinitialized. If you have any questions, answer No;6. Type "Enable" (no password, press Enter );7. Change the password (whether encrypted or not ):A. Enter "config mem" or "copy startup-config mem ";B. Enter "write ";C. Enter "config term" and "enable secret 8. Remove the user prompt and password:A. Enter the virtual line
Essential security commands for CISCO router initialization 1. Security Settings for vro Access Control 1. Strict control over the administrator who can access the vro. Record Filing is required for all maintenance tasks. Www.2cto.com 2. do not access the vro remotely. Even if you need to access the vro remotely, we recommend that you use the access control list and high-intensity
How to crack the vro password (CISCO )!Fault symptom:Network devices or large application service software use password protection for security purposes. Therefore, the network administrator needs to enter the correct password and then log on to the network device or service software to
, this is zebra (version 0.93b).Copyright 1996-2002 Kunihiro Ishiguro.User Access VerificationPassword: zebraspeedmetal> enablePassword: zebraspeedmetal# ? configure Configuration from vty interface copy Copy configuration debug Debugging functions (see also 'undebug') disable Turn off privileged mode command end End current mode and change to enable mode. exit Exit current mode and down to previous mode help D
password, press Enter );7. Change the password (whether encrypted or not ):A. Enter "config mem" or "copy startup-config mem ";B. Enter "write ";C. Enter "config term" and "enable secret 8. Remove the user prompt and password:A. Enter the virtual line configuration mode and enter "line vty 0 4 ";B. Enter "password C.
Cisco 5000 ATMLANE MOUdle password recovery
Password Recovery Procedurefor the Catalyst 5000 atm lane Module
Description
This document describes the password recovery procedure for the Cisco Catalyst 5000 atm lan emulation (LANE) module(WS-X5153/5154/5155/5156/5157/5158/51
Cisco routers use many methods in configuration. Using SSH instead of Telnet cisco makes it easier for us to understand the configuration of cisco routers and other knowledge points.
Replacing Telnet with cisco router configuration using SSH The Telnet protocol is a member o
Encapsulation Frame-relay boot Frame Relay Package
Encapsulation Novell-ether rules the Novell unique format used on the network segment
Encapsulation PPP set PPP to the encapsulation method used by the serial port or ISDN interface
Encapsulation SAP rules the Ethernet 802.2 format used on the network segment the Cisco password is SAP
End Exit Configuration mode
Erase Remove flash memory or configure
1. Security Configuration of vro Access Control1. strictly control the administrator who can access the vro. Record Filing is required for any maintenance.2. do not access the vro remotely. Even if you need to access the vro remotely, we recommend that you use the access control list and high-intensity password control.3. Strictly control access to CON ports. Specific measures include:
A. if you can open the chassis, you can cut off the physi
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