cisco 3640 router

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

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

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

Update the public ip address of the Cisco router. First, confirm how your network is going. Here we will talk about the configuration based on our network: first, remove the default route no ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx adds the new default route www.2cto.com ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx then remove the ACL to overwrite the no ip nat inside source list 1 pool BJ. RK overload re

Cisco router nat translation 1. One-to-one correspondence between the internal address and the egress address disadvantages: When the egress address resources are scarce, only a small number of hosts can be connected to the internet. 2. The internal address shares the egress address. The router uses the egress address and port number, as well as the external host

There are too many Qos information on the Cisco Router Traffic Control instance, but many of them are not practical. I have talked about a lot of theories. The following are the configurations on the routers of a subsidiary for your reference. In fact, as long as you understand the meaning of NBAR, CBWFQ, and WRED, traffic control can be configured as needed. Www.2cto.com Description: A subsidiary uses a 2

When we use Telnet to log on to the device, the user name and password are transmitted in clear text, in order to ensure the security of the data, we recommend the use of SSH login device. The following is the configuration of the Cisco router SSH:1. Configuring hostname and Domain-nameR1 (config) #hostname R1R1 (config) #ip domain-name frame.com2. Generate the key, here is the 1024-bit key, the key length

The port Mapping method enables access to specific port services from the Internet to the local area network internal machines. For example, the machine you are using is in a LAN connected to the Internet, all the services you open on the machine (such as FTP), by default, the outside world can not access. This is because your IP is the LAN internal IP, and the outside can access only the server you are connected to the IP, because the entire LAN on the Internet only a real IP address, and this

Cisco 7609 Router boot rommon modeCisco7609 boot into Rommon 1 > Mode solution:Rommon 2 > Dir disk0: Check if the file existsInitializing ATA Monitor Library ...Directory of Disk0:2 120962020-rw-c7600s72033-advipservices-mz.122-33.src3.binRommon 3 > Confreg 0x2102 Correcting register valuesRommon 7 > Boot=disk0:c7600s72033-advipservices-mz.122-33.src3.binRommon 8 > Sync SaveRommon 9 > I restartThe above ope

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

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

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