The following describes how to connect to a Cisco 2500 series router. In this section, assume that the router to be connected has received a basic configuration.Figure 1-6 shows the connection work that needs to be done after 2 5 0 1. Each vro has a console connection toolbox, including a Black r j-4 5 cable and a set of connectors. To connect to A Wy s e or othe
not encrypted during network transmission, strict control is required. For example, set a strong password, control the number of concurrent connections, strictly control the access address using the access list, and set user access control using AAA.8. We recommend that you use FTP instead of TFTP for iOS upgrade and backup and configuration file backup. For example:Router (config) # ip ftp Username blushinRouter (config) # ip ftp password 4tppa55w0rdRouter # copy startup-config ftp:9. Upgrade
At present, China's wireless router industry is developing very rapidly, and its market demand is also very high. Here we mainly introduce Cisco's first dual-band wireless router launched in China, this section describes the features and performance of the vro. In May 19, Cisco launched the Linksys by Cisco dual-band w
The first of these methods
This approach restores the following routers: Cisco 2000 series, 2500 series, 3000 series, Cisco 4000 series using the 680x0 Motorola CPU, and 10.0 series routers running 7000 versions of Cisco IOS systems.
Implementation steps:
1. Connect a terminal at the console port of the router or a
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
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
The CISCO router performs a bridge on the instance router # sh ru Building configuration... www.2cto.com Current configuration :! Version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption! Hostname router! Enable secret 5 $1 $ BE0q $ hj. WBtIBYppMX3zyfaPbR1!!!!! Memory-si
://s3.51cto.com/wyfs02/M01/5B/98/wKiom1UNHE_jd_NWAAMEKi3zMRY964.jpg "width=" 536 "height=" 351 "alt=" Wkiom1unhe_jd_nwaameki3zmry964.jpg "/>3. Backing up the configuration fileConfiguration command:Router (config-if) #ip address 192.168.1.2 255.255.255.0! Set the interface IP addressRouter#write memory! Save Running-config to Startup-configRouter#copy Running-config TFTP Save addressAddress or name of remote []?192.168.1.1 saved host IPDestination filename [
First, the experimental topologySecond, the specific configurationRouter (config) #do sh runbuilding configuration ... Current configuration:604 bytes!version 12.4no service Timestamps log datetime MSECNO service timestamps debug datetime MSECNO Service Password-encryption!hostname router!ip dhcp excluded-address 192.168.1.1!IP DHCP Pool ABCNetwork 192.168.1.0 255.255.255.0Default-router 192.168.1.1Dns-serv
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
that needs to be mapped to the Internet for access by others.
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The specific requirements are as follows:1. Only Internet users are allowed to ping the server and log on to the server through SSH;2. Only Intranet users are allowed to ping the server and log on to the server through telnet;3. Intranet users can access the Internet freely;4. The server cannot access the Internet.Step
Cisco router reset enable password tutorial, ciscoenable
Steps:
1. Restart the vro and press ctrl + Breack when ROM Monitor mode appears on the vro to enter ROM mode, for example:
2. Modify the vro register value, change the original register value 0x2102 to 0x2124, and then run the reset command to restart the device, for example:
3. After the password is changed, the value of the drop register in
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
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
I. Overview:
In the actual work can often see a strong SSL VPN can bypass deployment, and support routing mode and NAT mode: Router mode requires intranet to VPN assigned address pool address can be router; NAT mode, VPN Client access intranet host, intranet host sees address as VPN interface address, Therefore, the address intranet of the VPN address pool is not required to be routed. If you want to test
:(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
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customized within a Network as needed without application. In the network, computers communicate through internal IP addresses. When the internal computer needs to communicate with the external internet, the device with the NAT Function (such as a router) converts an internal IP address to a valid IP address (that is, the requested IP address) for communication.
2. NAT application environment
Scenario 1: an enterprise does not want external n
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