Huawei router and the same class Cisco router in the functional characteristics and configuration interface is completely consistent, some aspects also according to the needs of domestic users made a good improvement. For example, in English and Chinese can be switched configuration and debugging interface, so that users do not have to face a large pile of Englis
Initial installation of the CISCO router tutorial
During the first installation, the system automatically enters the Dialog Setup, as prompted on the screen, answer the router name, encrypted super login password, super login password, remote login
CHAP (Challenge Handshake Authentication Protocol) and PAP (Password Authentication Protocol) are generally used to provide security Authentication on PPP encapsulated serial lines. With CHAP and PAP authentication, each Cisco router is identified by a name to prevent unauthorized access.
Task commands
Set the PPP encapsulation ppp1
Set the authentication method
the devices connected to the internet have a ground wire. These devices include hosts, workstations, hubs, switches, routers, and MODEM connected To routers. The terminal or PC that configures the router must also use a valid power supply.
CISCO synchronous serial interfaces are commonly used. Different interfaces, such as RS232 and V.35, can be obtained through different cables. In addition, the cables of
:(1) Step 1: Configure the Router Ethernet interface IP address(2) Step 2: Configure the router password(3) Step 3: Access the router via TelnetCommands for the relevant steps:Configure the Router Ethernet interface IP address (enter the privileged mode, global mode, interfa
255.255.255.0 IP nat outside no IP mroute-cache Bandwidth 2000 No Fair-queue clockrate 2000000 Interface Serial1 No IP address shutdown No IP classless IP route 0.0.0.0 0.0.0.0 Serial0 access-list 1 Permit 10.1.1.0 0.0.0.255 Line con 0 line aux 0 Line vty 0 4 password Cisco End 3, multiplex dynamic address conversion applicable environment: Dynamic Address Translation is
privileged mode, you must set a privileged mode password or configure telnet user rightsConfigure the Vty line login password and enable global password encryptionLog on to the router with the Telnet command to seeDisplay current configuration informationPC0 setting 192.168.1.2255.255.255.0192.168.1.1Router0 configura
are used
The route of this packet.
---- GRE only provides encapsulation of data packets. It does not have encryption to prevent network listening and attacks. Therefore, in the actual environment, it often corresponds to an IP address.
When the SEC is used together, IPSec provides encryption of user data to provide users with better security.
The GRE protocol has two main purposes: internal protocol encapsulation and private address encapsulation. In China, CEN uses almost all TCP/IP protocols,
Cisco router Tcl script backdoor 2nd tests
Author: Vic
The security of Cisco routers is certain. Password verification is required for remote login. The Cisco passwords are encrypted in the following ways:1 not encrypted, plaintext display
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encapsulation method used by the serial port or ISDN InterfaceEncapsulation sap specifies that the Ethernet 802.2 format Cisco password used on the network segment is SAPEnd exit Configuration ModeErase deletes flash memory or configures CacheErase startup-config Delete content in NVRAMExec-Timeout: specifies the time that the exec command interpreter has waited before user input.Exit to exit all configura
; Note that the enable password and vty password can only be connected by the pc telnet we use PC to telnet router and of course we're still using putty. on one router. telnet 650) this.width=650; "style=" Float:none; "title=" 3.JPG "src=" http://s2.51cto.com/wyfs02/M02/7D/2E/ Wkiom1bhajdaou-vaa
: single two-way authentication: www.2cto.com 2.2, CHAP authentication: CHAP: Challenge Handshake Authentication Protocol, full name: challenge Handshake Authentication Protocol. CHAP verifies the identity of the authenticated end through a three-way handshake. It is completed when the initial link is established. To improve security, it is periodically verified after the link is established. CHAP is safer than PAP because CHAP does not send plain text online, but instead sends a random number s
Configure the PPPoE configuration for connecting a CISCO router to an ADSLmodem through the PPPoE configuration: hostnamebjsite! Ipsubnet-zeronoipdomain-lookup! Vpdnenablenovpdnlogging! Vpdn-group1request-dialinprotocolpppoe! Interfaceethernet00ipaddh
Configure PPPoE for connecting a CISCO router to an ADSL modem using
Simple Local authentication:(config) #username admin password Cisco // Establish user admin password for Cisco Local User (default permission level is 1)(config) #line vty 0 4 (config-line) #login local / /call on- premises authentication / / above method configuration, the default entry is User mode ">" Afte
supports SSH. log on to your vro or vswitch and check whether you have loaded an IPSec IOS image that supports SSH.
In our example, we will use the Cisco IOS command. Run the following command:
Router> Show flash
This command displays the name of the loaded IOS image. You can use the result to compare the list of supported features of your supplier.
After you verify that your device supports SSH, make sure
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