cisco 2924

************************************************************************First, declare:I am rookie level for Cisco UC, if you are a bull, please take a detour.In the spirit of sharing, appropriate collection of some hard money, will be the contribution of their own learning.************************************************************************It is estimated that many people are looking forward to this series of courses, estimated at least for a yea

Absrtact: This article describes the first time the author contact Cisco PIX Firewall, summed up the Basic Firewall configuration 10 aspects of content. Hardware firewall, is the network between the wall, to prevent illegal intrusion, filtering information, etc., structurally speaking, is simply a PC-style computer host plus flash (Flash) and firewall operating system. Its hardware is similar to the common control machine, all belong to can be suitabl

Router Access ADSL configuration detailed 1, Cisco router connection to the ADSL modem configuration: Note: The case for Beijing Telecom ADSL PPPoE access, need to use a common ADSL modem and a Cisco 2500 router (dual Ethernet port), IOS 12.2 (T), Be able to realize LAN sharing Internet. This case configuration is divided into 7 steps:First step: Configure VPDN VPDN E1. The PPPoE configuration of

Users who use Cisco switches have encountered many problems. Here we mainly analyze the failure and solution of Cisco switches triggered by IOS. Summary of the fault recovery solution for Cisco switches triggered by IOS, today's topic on preventing Cisco switch faults is discussed about how to cope with

Cisco Systems®Multi-Service routers and Integrated Multi-Service Router series media verification and encryption features ensure that voice sessions are not affected by eavesdropping. Cisco's Unified Communication System consists of voice and IP communication products and applications, enabling organizations to communicate more efficiently-helping them streamline business processes and immediately obtain support for appropriate personnel and resources

Cisco disables Some uncommon Services 1. Cisco Discovery Protocol CDP is a Cisco dedicated protocol that runs on Layer 2 of all Cisco products, shared basic device information with other directly connected Cisco devices. Independent of media and protocols. Hackers can use CD

For many years, Cisco PIX has been a firewall established by Cisco. In May 2005, however, Cisco launched a new product, the Asa,adaptive security appliance, as an adaptive safety product. However, PIX is still available. I've heard a lot of people asking about the difference between the two product lines on a number of occasions. Let's take a look. What is

For many years, Cisco PIX has been a firewall established by Cisco. In May 2005, however, Cisco launched a new product, the Asa,adaptive security appliance, as an adaptive safety product. However, PIX is still available. I've heard a lot of people asking about the difference between the two product lines on a number of occasions. Let's take a look. What is

Lab Environment:650) this.width=650; "alt=" Cisco Packet Tracert Spanning tree understanding-Ibm.chick-mingkang.zhou "src=" Http://img1.ph.126.net/-OTBVD6L D8mmccic2uxrbg==/6630564189373643902.png "style=" border:0px;height:auto;margin:0px 10px 0px 0px; "/>Experimental Purpose:1. Simple description of Spanning tree.2. Observe that a switch belongs to the root bridge.3, observe the switch is not the root bridge, the port is "blocked".4. Set the port of

1. background for Cisco devices and Microsoft Systems Integration:Within the company there are a number of clients, in order to achieve harmonization, in the management of the internal deployment of domain architecture, so that through Group Policy to the clientmake batch management, improve the efficiency of management. the same company has a certain number of network equipment (switches, routers, firewalls, etc.),in remote management, it is throu

Cisco device configuration files are backed up regularlyI. Needs and coping strategiesIDC machine Room Several switches and firewall equipment, because of business needs, often on the switch or firewall to modify the configuration file, although the Cisco device stability is good, but do backup, can just in case.There are many articles on the web that are regularly backed up by

valuable documents, once stolen, the loss will be immeasurable, so they decided to use the way of tendering, to their own network to buy a "door", all hidden dangers are "shut out ”。 From buying "doors" to buying ideas As we all know, the most secure "door" that is now used is the firewall. The ocean wants to filter suspicious information by adding a firewall between their intranet and the external Internet. Ocean's bidding activities attracted 5 domestic and foreign well-known security solutio

In order to allow Cisco switched remote connections to the security of the account password improved, you can use SSH to connect the terminal, but many factory switches default iOS is not supported by the SSH feature, in order to enable Cisco switches to support SSH, must upgrade with "K9" iOS. The following is the factory Cisco 3750g-24ts default iOS screenshot

Release date:Updated on: Affected Systems:Cisco IronPort Encryption Appliance 6.xUnaffected system:Cisco IronPort Encryption Appliance 6.5.3Description:--------------------------------------------------------------------------------Bugtraq id: 52030Cve id: CVE-2012-0340 IronPort is a widely used email encryption gateway that can seamlessly encrypt, decrypt, and sign confidential emails. The IronPort encryption device has a cross-site scripting vulnerability. unauthenticated remote attackers c

Analysis of Cisco router IOS backup and recovery Introduction: I. Wiring Serial Interface-> console and pc Nic interfaces-> F0/0 // The IP address of the PC and the F0/0 interface (of course, other interfaces can be connected to the network cable). The IP address can be in the same network segment. You can also use an Internet ip address! Ii. Tools 3 CDaemon (tftp server) and CRT (access routing tool) Iii. Command Line (Backup) 3640 # copy Flash tftp

A security researcher found a vulnerability affecting the Linux operating system in the Cisco Unified Video Conferencing system (uniied Videoconferencing system. These vulnerabilities allow attackers to access the video conferencing device and steal certificates. These vulnerabilities affect the Cisco UVC 5100 Series and 3500 series. Cisco has not fixed this vul

Release date:Updated on: Affected Systems:Cisco IOS 15.1-15.4Description:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2014-2109Cisco IOS is an interconnected network operating system used on most Cisco system routers and network switches.A security vulnerability exists in the TCP input module of Cisco IOS 15.1-15.4. unauthenticated remote attackers can e

Release date:Updated on: Affected Systems:Cisco IOS 15.1-15.4Description:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2014-2111Cisco IOS is an interconnected network operating system used on most Cisco system routers and network switches.The Application Layer Gateway ALG module in Cisco IOS 15.1-15.4 has a security vulnerability. unauthenticated remote a

Release date:Updated on: Affected Systems:Cisco NX-OSDescription:--------------------------------------------------------------------------------Bugtraq id: 67571CVE (CAN) ID: CVE-2014-2200Cisco NX-OS is a data center-level operating system that represents a modular design, always-on and maintainability. Cisco NX-OS is able to divide OS and hardware resources into virtual environments that simulate virtual devices. Each VDC has its own software proces

Release date:Updated on: Affected Systems:Cisco ios xe 3.xDescription:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2014-2113Cisco IOS is an interconnected network operating system used on most Cisco system routers and network switches.When Cisco IOS and ios xe handle IPv6 packets, errors may cause memory resource depletion and device overloading.Link: ht