cisco n900 router

Hardware and Software Versions This configuration is applicable to all Cisco IOS software versions. DCE edge is connected by Wan DCE cable. DTE edge is connected by Wan DTE cable. For more information about the wan dce/DTE cable, see the serial cable documentation.Network Diagram 650) this. width = 650; "src =" 51cto.com/uploads/allianz 110909/1212454314-0.jpg "border =" 0 "/> This article is based on the following Configuration: In this configuratio

The computers in the 172.16.4.0/24 network segment are servers, and we protect these servers from the virus attacks from the 172.16.3.0 network segment via reverse ACL settings.Configuration instance: Prohibit virus from 172.16.3.0/24 this network segment to 172.16.4.0/24 this server network segment.Access-list Permit TCP 172.16.3.0 0.0.0.255 172.16.4.0 0.0.0.255 established Cisco Simulator defines ACL101, allowing all calculations from 172.16.3.0 net

R1 (config) #int s1/0R1 (config-if) #ip address 192.168.1.1 255.255.255.0R1 (config-if) #clock rate 64000 Set clock frequencyR1 (config-if) #no shutdownR1 (config-if) #encapsulation PPP-enabled PPP authenticationR1 (config-if) #ppp pap sent-username R2 password Cisco authenticated user and passwordR2 (config) #username R2 password CiscoR2 (config) #int s1/0R2 (config-if) #ip address 192.168.1.2 255.255.255.0R2 (config-if) #clock rate 64000R2 (config-i

How to Set Up r12002 routing protocol for Cisco router 3620 to demonstrate how to set up r12002 routing protocol for Cisco router 3620 this time, we need to build a complex network experimental environment, this environment is also the experimental environment used later to learn about other

This test configures remote management of routers and switches within the LAN, routers for Cisco 2621XM, switches for Cisco 2960Switch configuration:Switch>enaSwitch#confSwitch#configure TSwitch (config) #interface vlan 1Switch (config-if) #ip address 192.168.2.10 255.255.255.0Switch (config-if) #exitSwitch (config) #ip Default-gateway 192.168.2.100Switch (config) #enable secret 123Switch (config) #line vty

When a Cisco router forgets or loses the enable password, there are two ways to recover, depending on which series of routers you are using. 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 se

Assume that two Cisco routers and R1 (server) connect to R2 (client) to form a simple chained lan. DHCP is implemented below. The configuration commands and explanations are as follows: 1. Configure the R1 dhcp Service Dhcp # configure terminal // Enter global Mode Dhcp (config) # service dhcp // Enable the dhcp Function Dhcp (config) # no ip dhcp conflictlogging // Disable dhcp logging Dhcp (config) # ip dhcp pool

Use the home ADSL line and use the CISCO router to build the PPPoe Server so that the PC can access www.2cto.com R1 (config-if) # do sh runBuilding configuration... Current configuration: 1470 bytes! Version 12.4 service timestamps debug datetime msecservice timestamps log datetime msecno service password-encryption! Hostname R1! Boot-start-markerboot-end-marker !! No aaa new-modelmemory-size iomem 5 !! Ip

You can configure a serial interface through a virtual terminal. to configure a serial interface, follow these steps: 1. In Global mode, enter the command "interface serial 0" to enter the serial interface configuration mode. 2. Each connected serial interface must have an IP address and subnet mask to forward IP packets, in interface configuration mode, enter the "ip address 3. If the serial interface is connected to a DCE device, we also need to configure a clock frequency for the serial inte

First, give an environment:Cisco router Intranet interface s1/0: 192.168.1.1 255.255.255.0Internet interface s1/1: 10.0.0.1 255.255.255.0Server ip Address: 192.168.1.100First telnet to the vrotelnet:User Access Verification Username: cisco # enter the user namePassword: # enter the PasswordRouter> en # Enter privileged ModePassword: # enter the privileged mode PasswordRouter # conf t # enter global configur

Tag: Register BRE router exists reload conf device star RAMClear the password for the Cisco 1841 router:(1) The console line connects the computer and the router console port, through the terminal client connection, the router is powered on (if the device is started, press t

When the iOS corruption in router needs to be restored, Ctrl+break (Packettrace is CTRL + C) When the router starts, enters Rommon mode, and the command prompt changes to: Rommon 1>Then enter the following command:Rommon 1>IP_ADDRESS=A.B.C.D//router's current IP addressRommon Subnet mask for 2>ip_subnet_mask:x.x.x.x//routerRommon 3>default_gateway=y.y.y.y//Router

In this experiment, the speed limiting device of a Cisco router is completed by a Cisco2811 router. In this experiment, we will first look at the flash: www.2cto.com yourname # dirDirectory of flash on the router in two ways: /1-rw-25438028 Oct 22 2010 02:25:58 + 02:26:08 c2800nm-ipbase-mz.124-15.T.bin2-rw-1505280 Oct

, dynamic address translation, and multiplexing dynamic address translation. The following example uses a Cisco router.1. Static address translationStatic address translation performs one-to-one conversion between the internal local address and the internal legal address, and specifies the legal address to which the conversion is required. If there are WWW servers or FTP servers in the internal network that

that needs to be mapped to the Internet for access by others. 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 1:First First, ensure that the server and PC can ping the gateway GW, then perform NAT on the GW, and ensure that t

When configuring the Cisco 3560 switch in the morning with the Cisco Packet Tracer practice, it is found that the IP address of the port cannot be configured in port configuration mode.Switch>Switch>enableSwitch#configure TerminalSwitch (config) #interface F0/1Switch (config-if) #?DhcpOnly DHCP commands are available. Check on the Internet, the original switch port is Switchport, that is, the two-layer swit

Environment Cisco 2500 Series Router Problem with Cisco router password recovery The Cisco 2500 router has several passwords, including the Enable secret,enable password,telnet password, and so on. The Enable secret is the most

Cisco router startup process:(1) execute Bootstrap Loader in the ROM, which is similar to the BIOS in the computer and Bootstrap will install IOS into RAM;(2) IOS can be stored in many places (FLASH, TFTP server or ROM). The order in which the router looks for IOS images depends on the startup domain of the configuration register and other settings. Configuration

Cisco router register configuration objective: Register configuration is used to change the router startup process. The Start bit consists of four hexadecimal registers. The value range of 0 xABCD www.2cto.com ranges from 0x0 to 0 xFFFF 0x2102: Industrial default value 0x2142: starts from FLASH, but do not use the configuration file (for Password Recovery) in NVR

When a Cisco router forgets or loses the enable password, there are two methods to restore it, depending on the series of products you are using.Method 1Steps:1. Connect a terminal or a PC with simulation terminal software installed on the console port of the router.The default register value is 0x2102. The value ranges from the third digit to the left. If it is 1, it is disableBreak. If it is 0, the Break