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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
It is very important to know some questions about Cisco router configuration. So I have studied the detailed introduction of Cisco router configuration statements, and I will share them with you here, hoping to help you. Cisco routers once dominated enterprise wide area netw
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
This article uses a specific example to illustrate how to configure the access to ADSL through the vro. What problems should we pay attention to during access? The following articles will benefit you a lot. Note: In this case, a common adsl modem and a cisco 25001841) router (dual Ethernet port) and IOS 12.2 (15) T need to be used to connect to the China Telecom adsl PPPoE, able to achieve LAN Internet shar
With the development of China's routing industry, Wireless routers are also widely used. Here we mainly explain a new Wireless-N Wireless router launched by Cisco, cisco Wireless Router WRT320NWRT320N is the latest Wireless-N Wireless router launched by Linksys. This product
-list 10 deny 192.168.1.0 0.0.255Router (Config) # access-list 10 permit any! The router is prohibited from receiving and updating the route information of the 192.168.1.0 network.Router (Config) # router ospf 100Router (Config-router) # distribute-list 10 in! Disable router forwarding to spread route information of 19
! The router is prohibited from receiving and updating the route information of the 192.168.1.0 network.Router (Config) # router ospf 100Router (Config-router) # distribute-list 10 in! Disable router forwarding to spread route information of 192.168.1.0 NetworkRouter (Config) # rou
Encapsulation Frame-relay boot Frame Relay Package Encapsulation Novell-ether rules the Novell unique format used on the network segment Encapsulation PPP set PPP to the encapsulation method used by the serial port or ISDN interface Encapsulation SAP rules the Ethernet 802.2 format used on the network segment the Cisco password is SAP End Exit Configuration mode Erase Remove flash memory or configure cache Erase Startup-config Delete the conte
It is very important for Cisco router users to learn about commands for password recovery of Cisco routers. For many beginners, the ROM Monitor of Cisco routers is often unfamiliar or even daunting for a simple reason, first, we do not often use this mode and are not familiar with its related operations; second, Operat
In the BGP Route Selection protocol, you can filter the BGP Route Selection and update. To do this, you need to use the prefix list. I. prefix list features: (1) it can be incrementally modified. We know that we cannot delete an entry in the general access control list, if you want to delete an entry in the list, you can only delete all the entries in the list. In the prefix list, you can delete or Add an entry separately. Www.2cto.com (2) and prefix list can be used in
As the core device of network communication, Cisco routers are widely used. The following is my experience in practice: Control port interface practices and connections Connect one end of the control cable RJ45 in the Cisco2500/1000 series router accessories to the Cisco CONSOLE port, and the Cisco7000/4000 series router
This article describes how to configure a vswitch for a CISCO 3550 router and how to configure access control for a MAC address. In network management, users often encounter this situation: some users violate management regulations and modify their own IP addresses without permission to access restricted resources. Such behavior not only undermines information security rules, but may also cause network comm
This article describes in detail how to skillfully set the speed limit for commonly used Cisco routers, and provides detailed operation steps. I hope this article will help you. The so-called speed limit is to set the ACL Access Control List on the router) to block the port used by the Service, so as to prevent the normal operation of the service. For the btsoftware, we can try to seal its port. In general,
Everyone knows that the Cisco router ACL plays an important role in the security policy of the Cisco router. Therefore, it is essential for everyone to master these knowledge points. In fact, this content is involved in many places. Access List) is an ordered statement set. It is a Sort table that allows or rejects pac
The question about the Cisco router interface is described in the following four steps. Based on the demonstration in the image, I believe that we should be able to clearly understand the question about the interface. 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 ser
When we want to perform permission rating management on a Cisco router or switch, it is often necessary to assign different levels of users a command that exceeds the default settings, such as show run, which is the most basic troubleshooting command.However, the command cannot be executed when your user level is at 0-14. You can assign permissions to these users using the following command:Privilege EXEC l
Some Suggestions on preventing distributed denial of service (DDoS) attacks on Cisco Routers 1. Use the ip verfy unicast reverse-path network interface command This function checks each packet passing through the router. In the CEF (Cisco Express Forwarding) Table of the router, the
Configuring a password for a Cisco router is a headache for common users. Here we will teach you how to configure a password for a Cisco router to bypass the vulnerability, cisco PIX, ASA, and FWSM are popular firewall devices that provide firewall services that can filter s
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