Shulou(Shulou.com)06/01 Report--

There are three main ways to configure a router: one is to connect the computer directly through the control line to the control port.

One way is to configure the router remotely via a network cable.

The other is to log on to the server.

Hyperterminal mode: This mode is mainly used for the initial configuration of routers, routers do not need IP addresses. The basic method is: the computer is connected to the Console port of the router through COM1/COM2 port, and the "super terminal" program is enabled on the computer. Set "baud rate: 9600, data bit: 8, stop bit: 1, parity check: none, check: none".

Telnet: This configuration requires that the router must be configured with an IP address. The basic method is that the computer is connected to the Ethernet interface of the router through the network card, and the IP address of the Ethernet interface of the computer and the router must be on the same network segment. commonly used

Other ways: AUX port connected to MODEM, through telephone line and remote computer running terminal simulation software; through Ethernet TFTP server; through Ethernet SNMP network management workstation.

2. Working mode of router

In the command line state, there are mainly the following working modes:

1 General user mode. Mainly used to view the basic information of the router, can only execute a few commands, can not configure the router. The prompt is Router>; the entry method is Telnet or Console

Enable (privileged) mode. It is mainly used to view, test and check routers or networks. It cannot configure interfaces and routing protocols. The prompt is Router# ; the entry method is Router>enable.

③ Global configuration mode. It is mainly used to configure global parameters of routers. The prompt is Router(config)# ; the entry is Router#config ter.

4. Sub-modes under global mode. Including: interfaces, routing protocols, lines, etc. The entry method and prompt are as follows:

Router(config)#ineterface e0 //Enter interface mode

Router(config-if)# //interface mode prompt

Router(config)#rip //Enter routing protocol mode

Router(config-router)# //Routing protocol mode

Router(config)#line con 0 //Enter line mode

Router(config-line)# //line mode prompt

3. Common commands

①"？Use of "Tab"

Type "? "Get help from the system;"Tab"supplement command.

② Change command status

Mission orders

Enter privileged command state enable

Enter global settings status config terminal

Exit (Ctrl+C to root)

Enter port setting status interface type slot/number

Enter the line setting status line type slot/number

③ Network command

task command

Log in to the remote host telnet hostname| IP address

Network detection ping hostname| IP address

Traceroute hostname| IP address

④ Basic setting commands

task command

global settings config terminal

Set access user and password username password

Set privileged password enable secret password

Set router name hostname

ip route destination subnet-mask next-hop

Start IP routing

port settings interface type slot/number

Set IP address ip address subnet-mask

activate/close port no shutdown/shutdown

physical line setting line type number

Start login process login [local| tacacs server]

Set login password password password

Router # config ter //Enter global configuration mode

Router(config)# hostname cisco2621//named "cisco2621"

(1) Enable password (privileged user)

Router(config)#enable password xlx1618 //Configure enable password as "xlx1618", displayed in plain text

Router(config)#enable secret xu1618 //Configure enable encryption password is "xu1618", cipher text display

(2) Console mouth password

Router(config)#line console 0 //Enter console port

Router (config-line)# password cisco //configure the console port password as "cisco"

Router(config-line) # login //password check

(4) Telnet password

If you want to use Telnet to log on to routers in your network for administrative and configuration purposes, you must configure the Telnet password. Routers typically support up to 16 (5) Telnet users. Line vty 0 15 (0 4) Password protection used when establishing telnet session access.

1) 16 Telnet users have the same password.

Router (config)#line vty 0 15 //Enter vty 0 15

Router(config-line) # password cisco //Password is "cisco"

Router(config-line) # login //password check

(1) Basic configuration of Ethernet

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip add 20.0.0.1 255.0.0.0

Closing and opening of interfaces

Router (config-if)#shutdown //shutdown interface

Router (config-if)#no shutdown //open interface

Remote login instance:

Router>enable

Router # config ter //Enter global configuration mode

Router(config)# hostname cisco1721 //Name it "cisco1721"

cisco1721 (config)#enable password cisco //configure enable password to be "cisco," plain text

cisco1721 (config)#enable secret cisco //configure enable encryption password is "cisco", cipher text display

cisco1721r(config)#line console 0 //Enter console port

cisco1721 (config-line)# password cisco //configure the console port password as "cisco"

Router(config-line) # login //password check

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip add 2192.168.01 255.255.255.0 IP address

Router (config-if)#shutdown //shutdown interface

Router (config-if)#no shutdown //open interface

//Telnet password: If you want to use Telnet to log on to routers in your network for administrative and configuration purposes, you must configure the Telnet password. Routers typically support up to 16 (5) Telnet users. Line vty 0 15 (0 4) Password protection used when establishing telnet session access.

Router (config)#line vty 0 15 //Enter vty 0 15

Router(config-line) # password cisco //Password is "cisco"

Router(config-line) # login //password check

Remote login operation 2:

Through TFTP servers over Ethernet; through SNMP network management workstations over Ethernet. Board the router and configure it.

Router>enable

Router # config ter //Enter global configuration mode

Router(config)# hostname ruijie

ruijie (config)#enable secret ruijie //configure enable encryption password as "ruijie", cipher text display

ruijie(config)#interface fastEthernet 0/0

ruijie(config-if)#ip add 192.168.0.1 255.255.255.0

ruijie (config-if)#no shutdown //open interface

ruijie(config)#line vty 0 15 //Enter vty 0 15

ruijie(config-line) # password ruijie

ruijie(config-line) # login //password check

exit router

Telnet mode. This configuration requires that the router be configured with an IP address. The basic method is that the computer is connected to the Ethernet interface of the router through the network card, and the IP address of the Ethernet interface of the computer and the router must be on the same network segment. commonly used

Router>telnet 192.168.0.1 255.255.255.0

Router>password

Router>

Then it is to carry out routing configuration as above.

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