cisco 3640 router

One. Test the topology:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/CA/wKiom1WH46fhBjvJAADX2zoss3k937.jpg "title=" TP1. JPG "alt=" Wkiom1wh46fhbjvjaadx2zoss3k937.jpg "/>Two. Test ideas:A. Enable resolution by IP NAT without setting the direction---this way can be accessed directly from the public IP address, or can be accessed by domain name method---unfortunately Cisco is different iOS, some although have IP nat enable, but do not re

Necessity for configuring WRED on a Cisco Router Although the queue provides VoIP QoS congestion management, it still needs some congestion avoidance mechanisms, such as WRED. In particular, WRED can prevent the output queue from reaching the limit value, which will lead to the loss of all input packets. This article comes from Informit and discusses the necessity of configuring WRED on a

Cisco once again launched a new generation of router products and also applied new technologies. So I studied how Cisco developed the new VQE technology to solve the problem of IPTV Video Delivery. Here I will share it with you, I hope it will be useful to you. Cisco has announced the release of the VisualQualityExperi

Cisco IOS is a dedicated kernel that provides routing, switching, network interconnection, and remote communication capabilities. Most Cisco routers are running iOS, and more and more Cisco Catalyst switches are running it, including Catalyst2960 and Catalyst3560 series switches. Some important aspects of the Cisco

A Cisco router is detected infected with a secret backdoor. Security company FireEye researchers reported that backdoor programs called SYNful knock were found on 14 Cisco routers in 4 countries. Cisco has confirmed this. The attack does not take advantage of the vulnerability of the product itself, but requires valid

. RPF reverse transmission path forwarding) is an input function activated on a network interface or sub-interface to process packets received by the router. It is very important to enable the CEF function on the vro, because RPF must rely on CEF. Unicast RPF is included in Cisco IOS 12.0 and later versions that support CEF, but does not support Cisco IOS 11.2 or

Cisco ASR1000 series router Denial-of-Service Vulnerability (CVE-2015-0685)Cisco ASR1000 series router Denial-of-Service Vulnerability (CVE-2015-0685) Release date:Updated on:Affected Systems: Cisco ASR 1000 Description: CVE (CAN) ID: CVE-2015-0685The

In Cisco router configurations, NAT configurations are frequently used. I hope the introduction below will be helpful to the majority of fans. It is a common method. The vro performs simple NAT translation and sets a CIDR Block in the NAT address pool. After a while, I found that the address pool was a waste of time. When I wanted to use a real ip address, I couldn't use it, so I decided to modify the

Use the tftp function of Linux to configure information about cisco router-Linux Enterprise Application-Linux server application. The following is a detailed description. In a LAN environment, if there are Cisco routers and Linux servers. Maybe you need to use Linux The TFTP service downloads the Cisco

One. Test the topology:Two. Test ideas:Three. Basic configuration:A.R1:Interface ethernet0/0IP address 202.100.1.1 255.255.255.0No shutdownIP Route 0.0.0.0 0.0.0.0 202.100.1.2B.R2:1. Interface configuration:Interface ethernet0/0IP address 202.100.1.2 255.255.255.0No shutdownInterface ETHERNET0/1No IP addressNo shutdown2.PPPOE Server configuration:AAA New-modelAAA Authentication PPP Default LocalUsername Cisco password 0

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

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

Router#show RunBuilding configuration ...Current configuration:1561 bytes!Version 12.4Service Timestamps Debug DateTime msecService Timestamps log datetime msecNo service password-encryption!Hostname Router!Boot-start-markerBoot-end-marker!Enable Secret 5 $1$6xpi$vgcpvaqgq4vp5chkdvduu.Enable password Cisco!No AAA New-model!Resource Policy!IP Subnet-zero!IP CEFIP

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

There is a bit of crooked nuts on the forum sigh "Cisco router QoS project monitoring is always painful", admittedly, the general router traffic monitoring, using cacti to do, and due to the different upgrade version number, and the router iOS version is different, and very difficult, Some programs even need to TFTP do

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

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