Telnet *.*.*.* The device to be telnet needs to set the password of line vty. If you need to enter privileged mode, you need to configure...

The three-tier architecture of the network: 1. Access layer: Provide network access points, the corresponding device ports are relatively...

7609 FWSM module FAILOVER configuration This configuration is very simple, only the script is posted, mainly in the project, you may...

Router upgrade IOS summary The first common method step: Note: With a TFTP server software (with cisco's TFTPServer or 3CDaemon), when...

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First, key terms Application layer: A layer in the TCP/IP stack that supports network applications and provides an interface to interact...

First, FTP (File Transfer Protocol) The full name of FTP is File Transfer Protocol. Used for bidirectional transfer of control files on...

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Friends who are studying the security direction of CCIE definitely have some understanding of URPF technology, so today we will explain...

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CISCO ASA is the most mainstream firewall in the world currently. So how should we configure this kind of firewall? This problem has...