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Simulate a cisco router with dynamic in Linux

Article Title: simulate a cisco router using dynamic in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Environment: centos5.2 Software: dynamic. cisco-ios 1: Download the dynamic binfile. Wget http://www.ipflow.utc.fr/

CISCO Router Network Address Translation (NAT)

CISCO Router Network Address Translation (NAT)Tutorial name: Cisco Router Network Address Translation (NAT) objective: to connect all Intranet IP addresses to the Internet using a small number of public IP addresses. Tutorial Introduction: using NAT technology, when an intranet private address sends data packets to a v

CISCO CCNA Router Password management

Tags: Cisco CCNA router Password managementfor device security, the device administrator typically sets the user name and password for the device. Here's how to configure 3 passwords, with emphasis in the middle.Username Test password Cisco//This is to set up a layer of accounts and passwordsEnable password 123// This is the Setup admin passwordRouter (config) #l

Summary of Cisco router port faults

Cisco port status: CSU ── channel server unit, DSU ── data server, unit, DTE ── DataTerminalEquipment 1. Serial * is down, line protocol is down (DTE) faults: [1] No power is added to the vro. [2] LINE is not connected to CSU/DSU. [3] hardware error. Solution: [1] Check power supply. [2] Check whether the cables and serial ports used are correct. [3] switch to another serial port. 2. Serial * is up and line protocol is down (DTE) faults: [1] local or

Cisco router network address translation (NAT)

Experiment Name: Cisco router network address translation (NAT)Experimental purpose: To achieve all intranet IP to use a small number of public IP network connection to the InternetExperiment Introduction:With the help of NAT technology, when the intranet private address sends packets to the router, the private address is converted to a legitimate public IP addre

Control Remote Cisco router to switch Telnet to SSH

supports SSH. log on to your vro or vswitch and check whether you have loaded an IPSec IOS image that supports SSH. In our example, we will use the Cisco IOS command. Run the following command: Router> Show flash This command displays the name of the loaded IOS image. You can use the result to compare the list of supported features of your supplier. After you verify that your device supports SSH, make sure

Cisco router global, interface, protocol debugging guide (1)

Global debugging When configuring a Cisco router, the boundaries between global and interface commands are obvious. In this case, we use "Global" to identify commands that cannot be used for interface debugging or specific transmission media types and Protocol debugging. For example, in vrouters 2500, you can use Debugging commands to analyze the Cisco Discovery

Cisco router RIP Protocol and IGRP Protocol configuration (1)

RIP and IGRP are commonly used router configuration protocols. What problems should we pay attention to when configuring RIP and IGRP? What should we do? The following configuration steps provide detailed answers. RIP Protocol RIP (Routing information Protocol) is an Internal Gateway Protocol (IGP) that is widely used earlier and is suitable for small-sized similar networks, is a typical distance-vector protocol. For more information, see RFC1058 an

Research and Practice of Cisco Series Router password recovery (1)

1. Password Recovery Principle 1) The Cisco router stores several different configuration parameters and stores them in different memory modules. The memory of Cisco Series routers includes ROM, Flash memory, RAM, immutable RAM, and Dynamic memory DRAM. See table 1 ). Generally, when a vrodram starts, it first runs the program in ROM, conducts system self-check

Best Choice for home wireless routing WRT54GC Cisco Wireless Router

The rapid development of wireless networks has also promoted the wide application of wireless routers. At present, the market demand is also very high. Here we recommend a Cisco wireless router, cisco's Linksys wireless products have always maintained Cisco's high quality. As a result, this WRT54GC Cisco Wireless Router

How to configure a Cisco router using a script

ExploitationScriptConfigureCisco router configurationBefore that, you must specify the operations you want to perform, execute those commands, and then write scripts. I want to back up the running-configure configuration. Of course, the device has been configured and the tftp server is ready. The Cisco router configuration is as follows: BT Wireless Network crac

Describes the details of a Cisco router simulation software.

I want to introduce a Cisco router simulation program to you today. I hope that a friend who is looking for software can take a look at this article to avoid some unsuitable factors after you download it. Software type: domestic software, authorization method: Shared Software, interface language: Simplified Chinese, Software size: 32.5 MB, file type :. exe, running environment: Win2003, WinXP, Win2000, Win9

Cisco router enters Rommon mode, Flash lost, swipe iOS method

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, there should be F interface with S Ios,

Cisco router-Wan protocol settings (1)

CHAP (Challenge Handshake Authentication Protocol) and PAP (Password Authentication Protocol) are generally used to provide security Authentication on PPP encapsulated serial lines. With CHAP and PAP authentication, each Cisco router is identified by a name to prevent unauthorized access. Task commands Set the PPP encapsulation ppp1 Set the authentication method ppp authentication {chap | chap pap | pap cha

Control of BT traffic by Cisco Router Security

This article describes how to control the BT traffic of a Cisco router through specific operations, and describes the specific operation methods in detail. I hope this article will help you. Network-Based Application Recognition (NBAR) indicates Network Application Recognition. NBAR is a technology that can dynamically search for protocols in Layer 4 to Layer 7. It can not only control static and simple net

GRE description (an example of GRE Tunnel Configuration for a Cisco router)

are used The route of this packet. ---- GRE only provides encapsulation of data packets. It does not have encryption to prevent network listening and attacks. Therefore, in the actual environment, it often corresponds to an IP address. When the SEC is used together, IPSec provides encryption of user data to provide users with better security. The GRE protocol has two main purposes: internal protocol encapsulation and private address encapsulation. In China, CEN uses almost all TCP/IP protocols,

Cisco router speed Limit Detail Setup statement

Probably a lot of people on the Cisco router speed limit is not a special understanding, so I studied the Cisco router speed limit detailed settings statement, here to share with you, I hope to be useful. In a Cisco router device,

Basic knowledge about cisco router switch names

CISCO router device categoryThe name rules of cisco routers start with cisco, such as cisco2611 and cisco2610. cisco is the name of the device manufacturer, 26xx represents the 2600 series routers, and xx is a more detailed classification. The following lists several common

cisco-Router Switch password recovery

and a switch are connected with the console lineHow it works: Switch password recovery fundamentals: Change the Config.text file name in the switch to a different file name, and then enter the configuration mode to change the password, and finally restore the Config.text file nameSteps:1. Power off first2. Power off while holding down the mode key on the switch until the display light on the switch is no longer flashing (5~10s), then release3. At this point, enterSwitch:flash_init (Initialize F

Use the Nipper to check the security of your Cisco Router

This article describes how to enhance the security of a Cisco router by using a Nipper. So how should we use it? The following article gives you a detailed answer. How do I use a Nipper? Since Nipper supports so many devices and is also known to support a wide range of multi-functional options, it is impossible for me to present them in all aspects. However, we can make a basic demonstration. In our example

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