cisco router show commands

through. Insert the DB25M header of the straight-through serial communication cable into the Console port of the router, and then insert the other end into the serial port of the terminal. Software connection As mentioned above, if the terminal used for 10 s configuration is a PC, you must run the terminal simulation software so that we can enter 10 s commands and view IOS information. The source of the te

This article describes how to enhance the security of a Cisco router by using a Nipper. So how should we use it? The following article gives you a detailed answer. How do I use a Nipper? Since Nipper supports so many devices and is also known to support a wide range of multi-functional options, it is impossible for me to present them in all aspects. However, we can make a basic demonstration. In our example

: Router(Config)#line aux 0Router(Config-line)#transport input noneRouter(Config-line)#no exec 5. We recommend that you use a permission classification policy. For example: Router(Config)#username BluShin privilege 10 G00dPa55w0rdRouter(Config)#privilege EXEC level 10 telnetRouter(Config)#privilege EXEC level 10 show ip access-list 6

(Config)#line aux 0Router(Config-line)#transport input noneRouter(Config-line)#no exec 5. We recommend that you use a permission classification policy. For example: Router(Config)#username BluShin privilege 10 G00dPa55w0rdRouter(Config)#privilege EXEC level 10 telnetRouter(Config)#privilege EXEC level 10 show ip access-list 6. Set a strong password for privileged mode access. Do not use enable password to s

an access list and apply the list to an interface. If the access list from any application to an interface is not a ready-made access list, the list does not filter traffic. The access list is designed to filter traffic through routers. Does not filter traffic generated by the Cisco router ACL. Place the IP standard access list as close as possible to the destination address. Place the IP address extended

Cisco router Startup ProcessThe Startup Process of a Cisco router is divided into four main stages: 1. execute POST 2. load the bootstrap program 3. search for and load Cisco IOS software 4. find and load the startup configuration file, or enter the setup Mode 1. executing P

notifications sent to neighbors.III. The use of the "ge" and "le" options in the "ip prefix-list" command may be confusing and difficult to understand. Next we will perform a test, to better understand the meaning of these options. The network topology is described as follows: vroa A belongs to AS65000, vrob B and vroc C are the neighbors of vroa A, and vroa A learns from vrob B, 172.16.10.0/24/60 .11.0, the port address of router C connecting to

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

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

There are many things worth learning about the configuration mode of a Cisco router. Here we mainly introduce the mode of user execution and privilege of a Cisco router. Ping is the most commonly used troubleshooting command. It consists of a group of ICMP response request packets. If the network runs normally, a group

: no action. check whether there are traffic matching and processing policies in the next rate-limit command. If not, transmit Set precedence and continue: Modify the IP prefix and then continue Set QoS group and continue: insert QoS group and then continue It should be noted that multiple rate-limit commands can be configured in one interface. If the action contains a continue, the next rate-limit command is executed in sequence, if a traffic is not

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

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

Permission settings Router (config) #privilege exec level [0-15] [command]//[command] for commands that are allowed under the current permission, such as: Show run Static routing Router (config) #ip route [Destination network] [mask] [Next Hop address | export] [admin distance] [no pass delete]

Huawei router and the same class Cisco router in the functional characteristics and configuration interface is completely consistent, some aspects also according to the needs of domestic users made a good improvement. For example, in English and Chinese can be switched configuration and debugging interface, so that users do not have to face a large pile of Englis

1. Preface A large number of Cisco routers are used in Jiangxi IP networks. Administrators usually use Telnet to remotely log on to the vro for routine maintenance. Because Telnet, FTP, and other network service programs use plain text transmission passwords and data in the network, their security cannot be effectively guaranteed. Once the Administrator's user name and password are intercepted by someone with ulterior motives, the consequences will b