cisco 7200 router

A Cisco router is a commonly used network device. But what is the storage type of a vro? We will give you a detailed introduction through this article, and hope to have a deeper understanding of Cisco routers after reading this article.Memory category:1: RAM: Random Access to memory, equivalent to computer memory2: ROM: read-only memory. Some microcodes used to s

timeout and SSH Authentication-retries to minimum numberEnable only SSH and SCP for access and file transfer to/from the router6. Protect forwarding planeEnables Cisco Express Forwarding (CEF) or distributed CEF on the router, when availableAnti-SpoofingBlocks all IANA reserved IP address blocksBlocks private address blocks if customer desiresInstalla default route to null 0, if a default route is not bein

When I got up this morning to go to the forum, I saw a post. Ask how to solve the following problem? A Cisco three-tier switch divides 3 VLANsVLAN 2:IP 192.168.1.1 255.255.255.0 192.168.1.254 Network SegmentVLAN 3:IP 192.168.2.1 255.255.255.0 192.168.2.254VLAN 4 IP 192.168.3.1 255.255.255.0 192.168.3.254Each VLAN can communicate with each other.Now add 1 Cisco routes to achieve shared Internet accessCisco

The following describes how to connect to a Cisco 2500 series router. In this section, assume that the router to be connected has received a basic configuration.Figure 1-6 shows the connection work that needs to be done after 2 5 0 1. Each vro has a console connection toolbox, including a Black r j-4 5 cable and a set of connectors. To connect to A Wy s e or othe

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not encrypted during network transmission, strict control is required. For example, set a strong password, control the number of concurrent connections, strictly control the access address using the access list, and set user access control using AAA.8. We recommend that you use FTP instead of TFTP for iOS upgrade and backup and configuration file backup. For example:Router (config) # ip ftp Username blushinRouter (config) # ip ftp password 4tppa55w0rdRouter # copy startup-config ftp:9. Upgrade

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

Cisco router ACL wildcard192.168.1.20-192.168.1.50 range of networksA contiguous address, the form of a wildcard mask must be:11111111=25501111111=12700111111=6300011111=3100001111=1500000111=700000011=300000001=1For range 20-50, be sure to use Access-list 1 per 192.168.1.0 0.0.0.63, then go head to tail0-16 the maximum block address that can be contained is 16:access-list 1 deny 192.168.1.0 0.0.0.1516-19

) #interface gigabitethernet0/0.1Router (config-subif) #encapsulation dot1q 2Router (config-subif) #ip address 192.168.1.1 255.255.255.0DhcpWanglei (config) #ip DHCP excluded-address 192.168.1.1Wanglei (config) #ip DHCP pool dhcppool1Wanglei (dhcp-config) #network 192.168.1.0 255.255.255.0Wanglei (dhcp-config) #default-router 192.168.1.1Wanglei (dhcp-config) #dns-server 192.168.1.1Wanglei (dhcp-config) #dns-server 61.128.114.133Static NATRouter (confi

Router#show Run Building configuration ... Current configuration:1115 bytes ! Version 12.2 Service Timestamps Debug Uptime Service Timestamps Log uptime No service password-encryption Hostname Router ! No logging on Enable Secret 5 $1$OYEO$B.DP73YBQILQNQSUV/WMX1 ! IP Subnet-zero ! ! ! VPDN Enable ! Vpdn-group 1 Request-dialin-----request-dialin is for the client. Protocol PPPoE ! ! !

The CISCO router performs a bridge on the instance router # sh ru Building configuration... www.2cto.com Current configuration :! Version 12.1 service timestamps debug uptime service timestamps log uptime no service password-encryption! Hostname router! Enable secret 5 $1 $ BE0q $ hj. WBtIBYppMX3zyfaPbR1!!!!! Memory-si

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