cisco routers models

Summary of typical configurations of Cisco routers (2) how to use the Control Access Rate of a Cisco router to limit the traffic Rate of ICMP packets: www.2cto.com interface xy rate-limit output access-group 2020 3000000 512000 786000 conform-action transmit exceed-action drop access-list 2020 permit icmp any echo-reply refer to IOS Essential Features for more in

Some Suggestions on preventing distributed denial of service (DDoS) attacks on Cisco Routers 1. Use the ip verfy unicast reverse-path network interface commandThis function checks each packet passing through the router. In the CEF (Cisco Express Forwarding) Table of the router, the router discards the packet if it does not have a route from the source IP address

(config ) #router NBSP;RIPNBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBsp;//Entering routing configuration mode - Enable RIP protocol router (config-router) #version 2 //using version 2, RIPV2 protocol router (config-router) #network 192.168.1.0 NBSP;//Specifies the network that needs to be advertised (located in the routing interface) Router (config-router) #network 222.200.105.0router (config-router) #exit/*=part3 static NAT configuration */router (config) #inter f0/0router (config-if) #ip natinsideroute

Cisco 2811 Routers Detailed configurationRouter>enableRouter#configure TerminalRouter (config) #hostname cisco2811//define router name2811 (config) #enable password 124563831//Set Login password2811 (config) #line vty 0 42811 (config-line) #password 124563831//Set Telnet password2811 (Config-line) #login2811 (Config-line) #exit2811 (config) #interface fastethernet 0/0//Set Intranet interface2811 (config-if)

setting the routing entry on the YONG3 on the 192.168.1.0 network segment, ping192.168.2.2 on the Yong1 to ping theYong3 (config) #ip Route 192.168.1.0 255.255.255.0 s/0/3/0Yong3 (config) #endYong3#sh IP routeGateway of last resort are not setS 192.168.1.0/24 is directly connected, Serial 0/3/0it has an administrative distance value of 0C 192.168.23.0/24 is directly connected, Serial 0/3/0Yong3#ping 192.168.1.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.1.1,timeout

This article describes in detail how to configure Cisco routers in terms of global debugging, interface debugging, and Protocol debugging. I believe this article will help you. Global debugging When configuring a Cisco router, the boundaries between global and interface commands are obvious. In this case, we use "Global" to identify commands that cannot be used f

The steps below describe how to recover a password on the Cisco 600 series of routers. Step 1: Enter RMON mode. To do this, follow the steps below: Connect your PC to the console port of the router.Set your Terminal Access Program (such as HyperTerminal in Windows) to the following settings:Baud rate: 38400 bps recommended (standard 9600 bps possible)Data bits: 8Parity: NoneStop bits: 1Flow control: NonePow

(config ) #router NBSP;RIPNBSP;NBSP;NBSP;NBSP;NBSP;NBSP;NBsp;//Entering routing configuration mode - Enable RIP protocol router (config-router) #version 2 //using version 2, RIPV2 protocol router (config-router) #network 192.168.1.0 NBSP;//Specifies the network that needs to be advertised (located in the routing interface) Router (config-router) #network 222.200.105.0router (config-router) #exit/*=part3 static NAT configuration */router (config) #inter f0/0router (config-if) #ip natinside //Se

Some recommendations for preventing distributed denial of service (DDoS) attacks on Cisco routers 1, the use of IP verfy unicast reverse-path network interface command This feature examines each router's packet. In all routing items that the packet reaches the network interface of the router's CEF (Cisco Express forwarding) table, the router discards the packet

command after the prompt:===================================================================ROMMON 1 >ip_address = Router IP addressROMMON 2 >ip_subnet_mask = Router Subnet maskROMMON 3 >defaut_gateway = Default gateway addressROMMON 4 >tftp_server = TFTP server IP addressROMMON 5 >tftp_file = iOS file nameROMMON 6 >tftpdnld===================================================================Rommon 1 >ip_address=192.168.0.1 (is the IP address of the router)Rommon 2 >ip_subnet_mask=255.255.255.0Ro

dedicated for network management or an application that executes management functions on a network device. Currently, many software and hardware vendors provide network management systems that support SNMP protocols, such as Cisco's CiscoWorks network management software products. The SNMP agent is a software module in the managed device. It is used to maintain the management information data of the managed device and reports the management data to an SNMP Management System as needed. The SNMP

Two-line access technology for Cisco Routers In some cases, we need to implement dual-line access to ensure stable operation of the network and ensure reliable service quality. The following steps can be taken: 1. Configure the IP address of the Internet access interface, which is generally from China Telecom or China Netcom. 2. Configure the access control list 3. Configure the NAT address pool 4. Configur

Basic configurations of Cisco Routers En -- enter the privileged mode config t -- enter the global configuration mode wr (OR) -- save the configuration (otherwise, the configuration fails before the power-off) 1. Set the password for entering the vro Console In global configuration mode, enter line console 0 --- enter the '0' Interface password 123 -- set the password to 123login -- set the console inter

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The management of the equipment is the basic condition for maintaining the normal operation of the equipment, so let's take a look at some basic management commands and methods of Cisco routers and switches. The methods and commands for managing routers and switches are mainly divided into several areas: 1, understand the command line mode. 2, configure the IP

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 192.168.1.0 NetworkRouter (Config) # router ospf 100Router (Config-router) # distribute-list 10 out6. We recommend that you enable the IP Unicast Reverse-Path Verification. It can check the accuracy of the source IP address and prevent certain

SYSTEM image according to the boot system command settings in the startup configuration, if this command is not set, the operating system image is loaded from the system image on a default network server. When the 6th-bit value is 1, the configurations in NVRAM are ignored when the vro starts. For example: 0x0: the operating system image is not automatically loaded, but enters the ROM monitor mode and waits for the user to enter the command (for example, if the command fails in the pre

This article describes in detail how to classify Cisco routers. What are the features of each Cisco Storage? I believe this article is helpful to you. Memory category: 1: RAM: Random Access to memory, equivalent to computer memory 2: ROM: read-only memory. Some microcodes used to start and maintain the router are resident in the ROM. 3: FLASH Memory, equivale

Router (config) # interface f0/0Router (config-if) # IP address 192.168.1.1 255.255.255.0Router (config-if) # no shutdownRouter (config-if) # exitRouter (config) #Router (config) #exitRouter #Router # Configure Terminal! Go to Global modeEnter configuration commands, one per line. End with cntl/z.Router (config) # enable password Cisco! Set Privileged PasswordsRouter # Write Memory! Save current configuration file to NvramRouter # Reload! Rebooting th

Experimental topology:Experimental purpose: Mastering How to manage routers with SDMExperimental requirements: Set R1 to be managed through the SDMExperimental steps:Step One: Configure the base IP AddressStep two: Set on R1 to enable it to connect through the SDMR1 (config) #username STSD privilege Secret Cisco// Create A level userR1 (config) #ip http server// open the R1 http ServerR1 (config) #ip http