cisco router configuration commands pdf

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

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

successfully and you can view your saved files on the TFTP server.4. Restore your configuration file, ping the TFTP server, keep the connection, download from TFTP to the routerCopy tftp running-config Download the previously configured backup from TFTP and restore the router's configuration fileIP address of the 192.168.1.1 TFTP serverRUNNING-CONFIG-BK you want to restore the backed up files in TFTPRunnin

NAT configuration instance for cisco router with port ing If the ISP provides many IP addresses, you can use NAT to map an external address to each server. However, if it is not the case (for example, if it is only two times), there are four servers in the Intranet that need to provide external services, one for Intranet address translation and the other for prov

Use a cisco router to simulate how to configure a frame relay switch (configure 3640 as a frame relay switch): 3640 (config) # frame-relay switching ---------------------- enable the frame relay switching function of the router 3640 (config) # int s0/0 ------------------------------------- enter the s0/0 interface 3640 (config-if) # no ip add --------------------

EnConf tHostname Cisco3800Interface Loopback0IP address 6.6.6.6 255.255.255.0Interface fastethernet0/0Description WANIP address 119.200.27.50 255.255.255.252IP Nat ousideInterface FASTETHERNET0/1Description LANIP address 192.168.6.1 255.255.255.0IP nat InsideIP Route 0.0.0.0 0.0.0.0 113.200.27.49 Telecom Unicom Next hopIP Route 192.168.3.0 255.255.255.0 192.168.6.2IP Route 192.168.4.0 255.255.255.0 192.168.6.2IP nat Pool www 119.200.27.50 119.200.27.55 netmask 255.255.255.252IP nat inside source

-->Protocol [ip]: [Protocol-Type] Target IP address: IP-Address Repeat count [5]: Datemedisize [100]: Timeout in seconds [2]: Extended commands [n]: y Command-->Sweep range of sizes [n]:Tracke usage:Router # trace IP-Address [Host-Name]Specify the media type for the Cisco 4000 vro:Router (config-if) # media-type 10 baset Router (config-if) # ^ zChange the vro sta

After we have configured the basic Secure password protection for the router, there are some basic information about the router that need to be configured, such as the router banner information and description information that the user can see in the landing router. 1 If we want all the administrators of the company to

The COPY command is often used during vro configuration. Next we will introduce how to use the COPY command to back up the configuration file, and how to COPY the backup configuration file from the TFTP server. 1. copy running-config startup-config This command copies the correct configurations stored in RAM to the nvram of the vro. In this way,

First, the initial sequence of router boot When the router is initialized, the router does the following: 1 from the ROM implementation of the self-test, detection of CPU, memory, interface Circuit basic operation. 2 from ROM to boot, the operating system installed to download to main memory. 3 The boot system is downloaded by flash or the network, and the Bo

configure NAT, a traditional IP Nat inside/outside mode, a NAT Virtual Interface (NVI) way, configure IP NAT enable under the interface, two ways can coexist simultaneously ---can successfully do NAT first need to exist routing, another must be from the IP Nat inside interface, from the IP Nat outside interface, or from an IP Nat enable interface to enter from another IP NAT enable interface out ---for the traditional way of l2l VPN configuration,

Cisco Network Tutorial: vro register configuration objective: Register configuration is used to change the vro startup process. The Start bit consists of four hexadecimal registers www.2cto.com format: 0 xABCD value range from 0x0 to 0 xFFFF 0x2102: Industrial default value 0x2142: Start from FLASH, but do not use the configu