cisco 3400

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Cisco Packer Trace's three-tier switch + router sharing internet

Lab Environment:650) this.width=650; "alt=" Cisco Packer Trace three layer switch + router sharing internet-Ibm.chick-mingkang.zhou "src=" http://img2.ph.126.net/Dz -huesti3hye1avbt8nsa==/2835578915401090952.png "style=" border:0px;height:auto;margin:0px 10px 0px 0px; "/>Experimental Purpose:1, the three layer switch divides three VLANs, is Vlan2\vnal3\vlan4, and the VLAN IP is set to: 192.168.2.1, 192.168.3.1, 192.168.4.1 respectively.2, on the three

Password Configuration authentication Bypass vulnerability in Cisco devices

Affected Systems: Cisco Firewall Services Module 3.1 (x) Cisco Pix/asa 7.1 (x) Cisco Pix/asa 7.0 (x) Describe: Cisco PIX, ASA, and FWSM are very popular firewall devices that provide firewall services that enable stateful packet filtering and deep message checking. Bugs may exist in some versions of the softwa

Configuration commands for Cisco routers

When it comes to configuring a new Cisco router, most configurations depend on the type of router and the purpose it will serve. However, each administrator has its own "correct" configuration for each router's list of commands. The author will share with you the list of 10 commands that he has configured the router for himself. When it comes to configuring a new Cisco router, most configurations depend on

Cisco Catalyst 4500 series: cable cards and their advantages

Fast Ethernet and Gigabit Ethernet line cards The Cisco Catalyst 4500 series scalable, modular, and high-density switches provide second, third, and fourth-layer switches and intelligent services with outstanding performance, enabling network control and permanent deployment. These switches provide a variety of Fast Ethernet and Gigabit Ethernet line cards, including desktops, branch backbone and servers for enterprise and commercial exchange solution

Cisco Unified Communication Based on SIP Protocol

A technology, especially network-centric and communication-centric technology, has its own transmission protocol. Now we will introduce some knowledge about Cisco Unified Communication Protocols. So what is SIP when Cisco's unified communication protocol is used? Why is it used? Support for the SIP protocol in Cisco Unified CommunicationThe SIP Protocol provides a standard-based IP communication method for

Cisco PIX 506E Firewall

The Cisco PIX 506E Firewall is an enhanced version of the most widely used Cisco PIX 506 Firewall, providing enterprise-class security for remote offices and branches through a robust, robust security device. The Cisco PIX 506E Firewall is part of the market-leading Cisco PIX Firewall series, offering rich security fea

Cisco PIX 506E Firewall Introduction

The Cisco PIX 506E Firewall is an enhanced version of the most widely used Cisco PIX 506 Firewall, providing enterprise-class security for remote offices and branches through a robust, robust security device. The Cisco PIX 506E Firewall is part of the market-leading Cisco PIX Firewall series, offering rich security fea

Cisco Packet Tracer installed in Linux

What is Cisco Packet tracer?The Cisco Packet Tracer is a powerful network simulation tool for training in Cisco certifications. It gives us a good view of the interfaces of each router and network device, with many options, and we can use unlimited devices in the network just like with physical machines. We can create multiple networks in a single project for spe

Overview of global debugging Methods for Cisco routers

There are a lot of users using Cisco routers, global debugging of Cisco routers here today I would like to introduce you, I hope to be useful to you. The boundaries of global and interface commands are obvious when conducting Cisco router configuration. In this case, we use the global to identify the commands that cannot be used for interface debugging or for sp

10 Cisco IOS file management commands

10 Cisco IOS file management commands in this article, author David Davis will list our commonly used Cisco IOS file management commands to help us consolidate how to manage flash on Cisco routers, nvram or files in other file systems, and teach you how to easily and quickly back up vro configurations, upgrade vrouters, or simply maintain the IOS file system. Lik

About Control and auxiliary interfaces in Cisco router ports

How should we connect to the Cisco router port? Many people want to know the specific role of the control port and the Auxiliary port. The port content is not detailed on the network. Here is just a few words about the port. The Cisco router port has a control port: the control port console port) and the Auxiliary port (AUX port) are two management ports of the cisco

Describes how to set the dialog process in the Cisco router manual.

In chapter 3 of the Cisco router manual, we will explain the "setup dialog process". This article is taken from the manual. This makes it easier for you to focus on setting up conversations. Global parameter settings, interface parameter settings, and display results. Setting Dialog can avoid the hassle of manually entering commands, but it cannot completely replace manual settings, some special settings must also be manually entered. After entering t

Cisco releases the latest ICMP attack method for Routers

In a recent IOS Security Bulletin, cisco warned that a public management protocol used on the Internet can be exploited to launch denial-of-service attacks against Cisco routers or other IP-based devices.This Security Bulletin warns of potential attacks based on Internet Control Packet protocol ICMP. Attacks may cause unavailability of IOS devices. Cisco's Security Bulletin is based on a bulletin issued by

An example of how cisco implements dynamic vpn

Recently, I have seen many vpn things and found that many manufacturers are paying attention to the implementation of Dynamic IP address-based vpn for small and medium-sized enterprises. Of course, cisco is no exception. In its ios12.3 (4) T, it began to support dynamic Address Resolution of vpnpeer. Now, in CiscoIOS12.3 (4) T, VPNpee is created based on the DNS name. Recently, I have seen many vpn things and found that many manufacturers are paying a

Cisco Finesse Server XSS Vulnerability (CVE-2015-0714)

Cisco Finesse Server XSS Vulnerability (CVE-2015-0714)Cisco Finesse Server XSS Vulnerability (CVE-2015-0714) Release date:Updated on:Affected Systems: Cisco Finesse Server 11.0 (1)Cisco Finesse Server 10.6 (1)Cisco Finesse Server 10.5 (1)

Cisco releases patches for ICMP attacks on routers

In a recent IOS Security Bulletin, cisco warned that a public management protocol used on the Internet can be exploited to launch denial-of-service attacks against Cisco routers or other IP-based devices.This Security Bulletin warns of potential attacks based on Internet Control Packet protocol ICMP. Attacks may cause unavailability of IOS devices. Cisco's Security Bulletin is based on a bulletin issued by

Password restoration for Cisco 6000 MSFC

ContentsDescriptionStep-by-Step ProcedureExample of a Password Recovery on the Catalyst 6000 MSFC ModuleRelated InformationDescriptionThis document describes the password recovery procedure for the Cisco Catalyst 6000 Multilayer Switch Feature Card (MSFC ).Step-by-Step ProcedureAttach a terminal or PC with terminal emulation to the console port of the switch.Use the following terminal settings: 9600 baud, no parity, 8 data bits, 1 stop bitType show mo

Cisco uniied Communications Manager SQL Injection Vulnerability (CVE-2018-0120)

Cisco uniied Communications Manager SQL Injection Vulnerability (CVE-2018-0120)Cisco uniied Communications Manager SQL Injection Vulnerability (CVE-2018-0120) Release date:Updated on:Affected Systems: Cisco Unified Communications Manager Description: Bugtraq id: 102958CVE (CAN) ID: CVE-2018-0120Cisco uniied Communications Manager is an enterprise-level IP call h

Cisco Prime Service Catalog Cross-Site Request Forgery Vulnerability

Cisco Prime Service Catalog Cross-Site Request Forgery VulnerabilityCisco Prime Service Catalog Cross-Site Request Forgery Vulnerability Release date:Updated on:Affected Systems: Cisco Prime Service catalogue 12.1Cisco Prime Service catalogue 12.0Cisco Prime Service Catalog 11.1.1 Description: Bugtraq id: 102719CVE (CAN) ID: CVE-2018-0107Cisco Prime Service Catalog is a solution that provides all IT s

CISCO router IOS upgrade method summary (1)

This article introduces the configuration and operation process of IOS upgrade against Cisco routers in two ways. Not long ago, when a friend upgraded CISCO2610 with a voice mode, the memory flash of the router was 8 MB, and the IOS software was more than 7 mb. After the upgrade, the router could not start normally. Go to the rommon 1 gt; status after startup to request help. As I have been engaged in computer network management for a long time, I ha

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