cisco 12000 router

Initial installation of the CISCO router tutorial During the first installation, the system automatically enters the Dialog Setup, as prompted on the screen, answer the router name, encrypted super login password, super login password, remote login password, dynamic routing protocol, and the configuration of each interface, and save the configuration. After the v

Telnet remote Login Configuration 1, configure Cisco router login account, password, account level, as shown below, account name ABC, password for abc123, account level of 15 (highest level) R1#configure Terminal R1 (config) #username ABC privilege secret abc123 R1 (config) #end r1# 2, configure the Cisco router

Test environment: Cisco Router Intranet interface F0/1:192.168.1.1 255.255.255.0 External network Interface f0/0:10.0.0.1 255.255.255.0 Server ip:192.168.1.100 First configure on the router: Router>en #进入特权模式 router#conf T #进入全局配置模式 Enter configuration commands, one

Topology map: 1. Configure the router R4 as a Frame relay switch Frame-relay switching * configured as Frame Relay switch 2. Configure the interface's clock frequency, package type, LMI type and Frame Relay DCE on the router R4 int s0/0 No shut Clock rate 64000 * Set clock frequency Encapsulation Frame-relay * Encapsulated as Frame Relay Frame-relay lmi-type

The market demand for Cisco routers is still very high, so I studied the knowledge about the default password of Cisco routers and shared it with you here. I hope it will be useful to you. The following are some default initial IP addresses, user names, and passwords used for Factory installation of ADSL, which must be known for debugging. There are three methods to debug these settings: One of the most c

255.255.255.0 IP nat outside no IP mroute-cache Bandwidth 2000 No Fair-queue clockrate 2000000 Interface Serial1 No IP address shutdown No IP classless IP route 0.0.0.0 0.0.0.0 Serial0 access-list 1 Permit 10.1.1.0 0.0.0.255 Line con 0 line aux 0 Line vty 0 4 password Cisco End 3, multiplex dynamic address conversion applicable environment: Dynamic Address Translation is a dynamic address conversion, but it can all

Cisco routers are widely used in network interconnection. Among them, 2500 series routers are widely used in low-end users. So what if you accidentally forget the superuser password of the 2500 series router? Don't be afraid, as long as you can restore as follows:Preparation: a computer running Terminal simulation program can start a Super Terminal in Windows 95/98), and the microcomputer serial port COM1/C

1. Use the Cisco router Debug cable to connect the router's console interface and the computer's serial port, turn on the router after powering on, and then 1. In Windows XP, initial debugging via the HyperTerminal logon router, as shown in network topology 7-8650) this.width=650; "title=" QQ picture 20150320165214.png

The Cisco router NAC solves the problem. The so-called NAC is an architecture that allows multiple hardware and software components to work together to protect the user's network from adverse client attacks. 1. It is not easy to fully implement NAC, because the entire architecture contains too many different components from other vendors. For example, the architecture contains the NAC Policy Manager and mul

Cisco router Entry 1First, let's take a look at the Memory RAM of one of the vro's internal components: Random Access to the memory, which is equivalent to the memory of the computer and is volatile (all storage content will be lost after power failure ), the main software running is the IOS image and configuration file. ROM: read-only memory, which resident some microcodes used to start and maintain basic

formatRouter (config) #ip route 2.0.0.0 255.0.0.0 1.1.1.2; Static Route exampleRouter (config) #ip Route 0.0.0.0 0.0.0.0 1.1.1.2, default route exampleDynamic routing:Router (config) #ip routing; Initiate route forwardingRouter (config) #router rip; start RIP routing protocol.Router (config-router) #network; set up publishing routesRouter (config-router) #negihb

:(1) Step 1: Configure the Router Ethernet interface IP address(2) Step 2: Configure the router password(3) Step 3: Access the router via TelnetCommands for the relevant steps:Configure the Router Ethernet interface IP address (enter the privileged mode, global mode, interface mode, and configure the Ip-> activation in

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/attac

The company's GPS patrol system needs to go WVPDN to communicate, but before looking for a telecommunications took a CISCO2811, collapsed once, the 2811 is the telecommunications sent, the estimated quality is not how, and then to find the company to buy the same type of equipment, 2811 discontinued, on the Cisco 2911.Yesterday arrived Ah, excited a bit, super terminal connected on, looked at the system configuration, the result of the hand is cheap,

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

Article Title: simulate a cisco router using dynamic in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Environment: centos5.2 Software: dynamic. cisco-ios 1: Download the dynamic binfile. Wget http://www.ipflow.utc.fr/

CISCO Router Network Address Translation (NAT)Tutorial name: Cisco Router Network Address Translation (NAT) objective: to connect all Intranet IP addresses to the Internet using a small number of public IP addresses. Tutorial Introduction: using NAT technology, when an intranet private address sends data packets to a v

Tags: Cisco CCNA router Password managementfor device security, the device administrator typically sets the user name and password for the device. Here's how to configure 3 passwords, with emphasis in the middle.Username Test password Cisco//This is to set up a layer of accounts and passwordsEnable password 123// This is the Setup admin passwordRouter (config) #l

Cisco port status: CSU ── channel server unit, DSU ── data server, unit, DTE ── DataTerminalEquipment 1. Serial * is down, line protocol is down (DTE) faults: [1] No power is added to the vro. [2] LINE is not connected to CSU/DSU. [3] hardware error. Solution: [1] Check power supply. [2] Check whether the cables and serial ports used are correct. [3] switch to another serial port. 2. Serial * is up and line protocol is down (DTE) faults: [1] local or