cisco 837

One, the internal components of the Cisco routerIn order to configure, Cisco Internetwork and troubleshoot, we must first understand the major components of the Cisco routers and understand these componentsThe respective function.Table 7-1 gives a description of the major components of the Cisco router. The micro

: IP access-list Extended xxx permit protocol source destination reflect name [time-out seconds] IP access-list Extended yyy Evaluate name (this keyword creates an open table entry that temporarily internally leads to an external return flow, the two red places must be the same, meaning I don't want to repeat it) is finally enabled on the interface, which is similar to the application rules for the normal list. 3lian.com below to illustrate with the example: First look at the confi

After the update is completed today, a long Cisco router command is divided into three articles, which will be helpful for users to read and hope that everyone can get the result from it, I believe these articles will certainly help some people. I. Starting with the Cisco router command M:Mbranch traces the multicast address down to the terminalMedia-type defines the Media typeMetric holddown isolates the n

Cisco is the main force in the entire vswitch. Its products are doing very well in the market. The following article will detail some of the usage skills and precautions of Cisco switches, in many organizations, the core backbone switches are primarily Cisco. In the process of debugging and maintaining Cisco switches,

With the development of China's routing industry, its application is also more extensive, especially the application of routers and firewalls. Here we mainly explain the security configuration of NetEye firewall and Cisco router. Firewall has become a key part of enterprise network construction. However, many users think that Cisco routers already exist in the network and some simple packet filtering functi

Cisco NX-OS MTS Remote Denial of Service Vulnerability (CVE-2014-2201) Release date:Updated on: Affected Systems:Cisco NX-OS 4.2 (6)Cisco NX-OS 4.2 (4)Cisco NX-OS 4.2 (3)Cisco NX-OSDescription:--------------------------------------------------------------------------------Bugtraq id: 67578CVE (CAN) ID: CVE-2014-2201Cis

Release date:Updated on: Affected Systems:Cisco IOS xr4.2Cisco ios xr 4.1.2Cisco ios xr 4.1.1Cisco ios xr 4.1.0Cisco ios xr 4.0.4Cisco ios xr 4.0.3Unaffected system:Cisco ios xr 4.2.1Description:--------------------------------------------------------------------------------Bugtraq id: 53728Cve id: CVE-2012-2488 Cisco ios xr is a next-generation network and Cisco carrier routing system. Implementation Vulne

Cisco AsyncOS Denial of Service Vulnerability (CVE-2016-1382)Cisco AsyncOS Denial of Service Vulnerability (CVE-2016-1382) Release date:Updated on:Affected Systems: Cisco AsyncOS Description: CVE (CAN) ID: CVE-2016-1382The Cisco AsyncOS operating system improves the security and performance of

Maybe many people do not know the actual application of the NetEye firewall and the Cisco router. Next we mainly analyze the security problems of the NetEye firewall and the Cisco router. Firewall has become a key part of enterprise network construction. However, many users think that there are already routers in the network and some simple packet filtering functions can be implemented. So why should we use

No one liked this, but sooner or later there would be a router crash. All that should be done now is to save the key information in the router memory so as to identify the cause of the router crash and prevent this situation from happening again. To do this, you need to configure the vro to save the core dump information stored on the vro at the time of crash. Next, I will tell you what is the core dump information, what is its usefulness, and how to save these files that are very important for

Using the Cisco router configuration can easily implement VoIP, So I studied the statements related to the Cisco router configuration and shared them here, hoping to be useful to everyone. VoIPVoice over IP) is a technology that transmits voice over the Internet. It has grown with the development of Internet technology. It integrates voice technology with network transmission, and gives full play to the rol

The Cisco switch password recovery security and the steps that should be followed. There are many things worth learning about the Cisco switch password recovery. Here we mainly introduce how to use the Cisco switch password recovery to ensure the security of the switch, including configuration environment and other knowledge points. Recently, the OS of a vswitch

Interconnection Between ZTE ZXR10 and Cisco RoutersI recently encountered such a situation in my work, because a network needs to be activated temporarily, and the central node is far away from each access unit, so the existing optical transmission network is used to connect the router. The central node is ZTE ZXR10, And the access unit is Cisco's 7200 series. The 155M channel is activated. After the channel is called, device Debugging starts. POS por

Open-source Metasploit Framework and commercial Metasploit products provide the security evaluation function for network devices. This article describes how to use the latest version to perform penetration testing for Cisco IOS, open-source frameworks need to add independent modules and support libraries. commercial products already include these modules, so you can start penetration testing more quickly, the following screen shows a successful penetr

Introduction to CISCO router AAA and related routing configuration cisco aaa www.2cto.com 3A concept: authentication authorization Accounting accountingcisco provides a variety of 3A services for routers and switches: 1. Self-contained AAA router/NAS self-contained AAA service NAS (Network Access Server) 2. Contact the AAA service on the cisco secure acs router/N

Cisco routers use a lot of users, at the same time there will be many problems, the password is forgotten or lost users are very common problems, so I studied the Cisco router password recovery of two methods, here to take out and share with you, hope for everyone useful. When a Cisco router forgets or loses the enable password, there are two ways to recover, dep

VTP (Virtual LAN Relay protocol): Cisco's private protocol, through the VTP protocol, can be implemented between the exchange of messages between the switch, so as to achieve the synchronization of VLAN and unified management.VTP Example:650) this.width=650; "Src=" https://s3.51cto.com/wyfs02/M00/94/10/wKiom1kLRyqA4V3yAAAnRNcPrV4865.jpg-wh_500x0-wm_ 3-wmp_4-s_536987812.jpg "title=" 2017-05-04_232121.jpg "alt=" Wkiom1klryqa4v3yaaanrncprv4865.jpg-wh_50 "/>R3:R3 (config) #int f1/1 #trunk模式R3 (confi

1th Chapter Planning (FREE)This chapter mainly introduces:1. Demo IP Phone registered to CUCM 11.X, realize the inbound and outbound call function.2. Demo Jabber Register to cup 11.X for instant messaging functionality.3. Demo seat monitor, the agent registers to the UCCX 11.X, realizes the function in call center (similar to 10086).4. Explain the CUCM 11.X, Cisco 2811, Skype for business Server 2015 integrated, to achieve mutual calls, Skype for busi

, write (WR), to save the current configuration information, as the configuration of the switch takes effect in a timely manner , but after the restart if not saved to the NVRAM will be lost, so after the configuration should be saved in time.5.erase NVRAM is equivalent to delete nvram:startup-config for deleting saved configuration information.6. Configure the console port password (used when connecting to the console line)650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/73/28/wKioL1

manage the switch via browserHigh-End Series products : The Formation of the future development of the architecture, to provide operational consistency, improve IT Infrastructure Utilization, improve network uptime, to build a high-bandwidth, high-reliability network protection. Work Assignment DescriptionA company has purchased a Cisco Catalyst 2950 Switch to build a small local area network that implements the basic communication capabilities of th