cisco 3745 router

customized within a Network as needed without application. In the network, computers communicate through internal IP addresses. When the internal computer needs to communicate with the external internet, the device with the NAT Function (such as a router) converts an internal IP address to a valid IP address (that is, the requested IP address) for communication. 　　 2. NAT application environment 　　　　 Scenario 1: an enterprise does not want external n

Update the public ip address of the Cisco router. First, confirm how your network is going. Here we will talk about the configuration based on our network: first, remove the default route no ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx adds the new default route www.2cto.com ip route 0.0.0.0 0.0.0.0 xxx. xxx. xxx. xxx then remove the ACL to overwrite the no ip nat inside source list 1 pool BJ. RK overload re

Cisco router nat translation 1. One-to-one correspondence between the internal address and the egress address disadvantages: When the egress address resources are scarce, only a small number of hosts can be connected to the internet. 2. The internal address shares the egress address. The router uses the egress address and port number, as well as the external host

There are too many Qos information on the Cisco Router Traffic Control instance, but many of them are not practical. I have talked about a lot of theories. The following are the configurations on the routers of a subsidiary for your reference. In fact, as long as you understand the meaning of NBAR, CBWFQ, and WRED, traffic control can be configured as needed. Www.2cto.com Description: A subsidiary uses a 2

When we use Telnet to log on to the device, the user name and password are transmitted in clear text, in order to ensure the security of the data, we recommend the use of SSH login device. The following is the configuration of the Cisco router SSH:1. Configuring hostname and Domain-nameR1 (config) #hostname R1R1 (config) #ip domain-name frame.com2. Generate the key, here is the 1024-bit key, the key length

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

Cisco 7609 Router boot rommon modeCisco7609 boot into Rommon 1 > Mode solution:Rommon 2 > Dir disk0: Check if the file existsInitializing ATA Monitor Library ...Directory of Disk0:2 120962020-rw-c7600s72033-advipservices-mz.122-33.src3.binRommon 3 > Confreg 0x2102 Correcting register valuesRommon 7 > Boot=disk0:c7600s72033-advipservices-mz.122-33.src3.binRommon 8 > Sync SaveRommon 9 > I restartThe above ope

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