cisco hackathon

This article uses the Cisco 2509 Terminal Server to log on to other machines. how to configure the server? The following article describes the configuration process in detail and provides configuration commands. Use Cisco router reverse Telnet for Terminal Server If we have multiple routers for experiment, it will be very troublesome to configure one Router Based on the control line. Therefore, we need to

Note: In the use of Cisco device upload Download, the TFTP protocol must be used, so you need to know the need for a network cable and computer, the computer needs to open the TFTP service (can download the relevant TFTP software on the Internet), the network cable connection to the Cisco devices and Computers, And make sure that the computer and the Cisco device

Network security management involves many aspects. However, looking at many security events, we can draw a basic conclusion that the harm is caused by ignoring basic security measures. This article will discuss the importance of maintaining Cisco Router password security, explain the three modes of Cisco router IOS, and show readers how to configure five passwords to protect network security. Causes of vro

To prevent IP address theft or employee IP address tampering in a Cisco switch, you can take the following measures: binding an IP address to a MAC address and binding an IP address to a vswitch port. 1. Check the port through IP Address Check the MAC address first, and then check the port based on the MAC address: Bangonglou3 # Show ARP | include 208.41 or show Mac-address-table to view the IP-Mac table of the entire port Internet 10.138.208.41 4 00

In network management, we usually handle the problem about Cisco router DHCP. Our netizens also participated in some of the discussions. Here we will summarize them for your reference. There may be no specific mode to describe Cisco router DHCP problems, so the following questions and replies from netizens may not help you, but it will help you in the future. Consultation: Experiment topology: configure the

Research and Practice of Cisco Series vro password recovery 1. Password Recovery Principle (1) The Cisco router stores several different configuration parameters and stores them in different memory modules. Cisco Series routers have five types of memory: Rom, flash memory, Ram, immutable ram, and dynamic memory (Dram) (see table 1 ). Generally, when a vrodram sta

Environment: centos5.2 Software: dynamic. cisco-ios 1: Download the dynamic binfile. Wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.6-RC4-x86.bin Music dynamips-0.2.6-RC4-x86.bin/usr/local/bin/dynamips 2: install the required libs. Wget http://www.mr511.de/software/libelf-0.8.10.tar.gz Compile and install: ./Configure -- enable-gnu-names Make-j7 DEPSHALIBS = "-lc" Make install Cp-r/usr/local/lib/libelf. so.0/usr/lib/ Cp-r/usr/local/lib/libelf-0.8

There are still many things worth learning about Cisco switches. Here we mainly introduce the Cisco switch interface mode. In a Cisco switch network, there are four main types of interfaces in the LAN that are ultimately stable: access/trunk/multi/dot1q-tunnel. 1. access: it is mainly used to access terminal devices, such as PCs, servers, and print servers. 2. tr

This article mainly introduces how to configure the vro for Cisco IOS configuration lock to prevent configuration disorder. I believe this article will help you. If multiple network administrators connect to the vro at the same time to modify the configurations, the changes may be lost or only part of the content can be executed, resulting in problems in the operation of the entire network. In this article, David Davis will introduce a new feature of

win2008r2 do Radius Server Cisco Device Articlerecently the company is ready to use Radius acts as an authentication server for Cisco devices, and, out of curiosity, first tests with a radius server. The first I used is Tekradius This server, do certification is no problem, but in the authorization, how can not get privilege15 permission, study for a long time have no success, temporarily put aside. Then I

Configuring a password for a Cisco router is a headache for common users. Here we will teach you how to configure a password for a Cisco router to bypass the vulnerability, cisco PIX, ASA, and FWSM are popular firewall devices that provide firewall services that can filter status messages and perform deep packet inspection. Some software versions used by the abo

Affected Systems: Cisco IOS 12.2 Cisco IOS 12.1 Cisco IOS 12.0 Description: Cisco Internet OS IOS) is the operating system used by Cisco devices. Cisco Systems IOS has a vulnerability in parsing GRE packets containing GRE source

Telnet to the Cisco router for remote management is the choice of many network management, but the data transmitted through Telnet is in plain text, so this login method has a great security risk. A malicious user may use a Sniffer tool like Sniffer to perform local monitoring on the Administrator host or an appropriate interface to obtain the Administrator's password for logging on to the Cisoc router. 1. Security Testing I installed sniffer locally

Cisco router Tcl script backdoor 2nd tests Author: Vic The security of Cisco routers is certain. Password verification is required for remote login. The Cisco passwords are encrypted in the following ways:1 not encrypted, plaintext display 650) this. width = 650; "border =" 0 "alt =" "src =" http://img1.51cto.com/attachment/201108/220643907.jpg "/> 2. bidirection

(config) #no monitor session 1Switch (config) #endSwitch#wrSwitch#show MonitorNo SPAN configuration is present in the system.3. Other(1) Port image filtering, port mirroring can do filter.Monitor session session_number Filter VLAN Vlan-id [, |-]* * Specifies which VLANs belong to the traffic that the source port is entering, and can be emitted from the destination port.(2) Delete imageNo monitor session {Session_number | all | local | remote}**SESSION_NUMBER Specifies the session number, all is

Why is loopback AS/32 host route advertised in OSPF?How do I change the reference bandwidth of OSPF? How does NBSP;OSPF calculate its measurement or cost? NBSP;OSPF is the routing protocol Exchange authenticated? What is the link state retransmission interval? What commands do you use to set it up? What is the function of variable Ip-ospf-transmit-delay? Is there a static option for only virtual links in OSPF that allows discontinuous networks regardless of the mask propagation properties? W

Product introduction Cisco SDM is an intuitive and web-based device management tool for managing routers based on Cisco ios® software. Cisco SDM simplifies the router and security configuration process through the Smart Wizard, and with these wizards for customers and Cisco Partners, you can quickly and easily deploy,

Brief introduction Cisco Fabric Manager is a web-based, easy-to-use, responsive application that enables switch and network management in an integrated way, simplifying the management of the Cisco MDS 9000 series switches in the storage Area network (SAN). Cisco Fabric Manager provides network-level management capabilities for storage administrators, including i

In the complex network environment today, the switch has become indispensable, so the switch manufacturers also develop quickly, here to take Cisco to give us a simple exchange! Cisco: Cisco; A simple introduction: Cisco is the world's leading provider of network solutions. Cisco's name is taken from San Francisco, whe

Experimental topology Router (config) #frame-relay switching to simulate a router as a Frame relay switch Router (config) #inter S1/1 Router (config-if) #clock rate 128000 Router (config-if) #encapsulation Frame-relay Configuration Interface encapsulation and binding relay The default Frame relay enabled on the interface is encapsulated in the Cisco package and, if connected to a non-Cisco router, us