cisco networking books

Cisco networking device: password explanation Password0 + password: Set the plaintext password. The password can be seen in both transmission and show. Password7 + password: Set the ciphertext password, which must be followed by the ciphertext. How can this ciphertext be obtained? In fact, you do not have to consider that when your switch enables the encryption service, it is the ciphertext directly.

The networking features of Cisco Route are essential for a network to communicate normally. Cisco routers interconnect different networks to make more efficient use of network resources, it brings great convenience to your life and work.I. Network isolation 1. With the development of the network, security has begun to attract people's attention. To improve networ

password, and if two passwords are used together,Enable password will not work unless the password for enable secret is valid. The Setup method is as follows:123321Configure the console password and some auxiliary commands:Router#config ter (enter global mode) Router (config)#lineConsole 0 (Enter the configuration control port mode, at which time the command is only valid for console 0)Router (config-Line ) #login (log in thread) Router (config-line) #password123(Set password) Router (config-li

The cisco 2621 router networking configuration command uses the cisco2621 router to form a small LAN, note: Configure command 1, configure the access password conf tenable secret flw521521line vty 0 4 password Authentication service password-encryption limit 2, configure interface IP enableconf tinter fa0/0ip address 192.168.2.2 255.255.255.0no shutdown inter fa0/ 1ip address 192.168.20.1 255.255.255.0no sh

, strange.Experiment Two: Range conversion1. Clear the object configuration from the previous experiment and review the validation:ASA (config) # clear Configure ObjectASA (config) # show Run ObjectASA (config) # show run NAT2. Configure network static NAT to convert the DMZ network 10.1.2.200-10.1.2.210 to the outside zone 202.100.1.200-202.100.1.210ASA (config) # object Network Out-poolASA (config-network-object) # range 202.100.1.200 202.100.1.210ASA (config) # object Network Dmz-yuanASA (con

assume that the PC1 computer is selected.1, click the icon, pop up the dialog box, operate as follows, then command the terminal too early.　　　　2, enter in the terminal of the popup:Ping 192.168.1.2 waiting for packets to return resultsPing 192.168.1.3 waiting for packets to return resultsIf it appears as a result, the communication is normal.　　　　　Attention:The way of the hub network has been abandoned by the times, the reason is that the hub sends the packet is broadcast form, the packet volume