Router Configuration & lt; 2 & gt;

Target:

Configure Telnet on the vrotelnet.

*

Experiment Principle

Connect the two routers through the serial port and connect them with V.35 DTE/DCE cables, and configure Telnet for each other.

The vro provides the WAN Interface serial high-speed synchronous serial port), and uses the V.35 cable to connect to the WAN interface link. When a Wan is connected, one end is a DCE data communication device) and the other end is a DTE data terminal device ). Clock rate must be configured on the DCE side to ensure link connectivity.

*

Experiment topology:

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Step:

Step 1: configure the vro name, interface IP address, and clock

R3740 # configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

R3740 (config) # hostname roupid

! Configure vro name

Routeconfig # interface serial 4/0

! Enter the interface configuration mode of the serial port

Roupid (config-if) # clock rate 512000

! Set the clock frequency at the DCE end. If you do not know the clock frequency, can you set the clock rate? Query, if the clock frequency is not linked

! Then it fails.

Routeconfig-if # ip address 192.168.1.1 255.255.255.0

! Configure the interface IP Address

Routeconfig-if # no shutdown

! Enable Port

Roupid (config-if) # exit

R3740 # configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

R3740 (config) # hostname RouterB

RouterB (config) # interface serial 4/0

RouterB (config-if) # ip address 192.168.1.2 255.255.255.0

RouterB (config-if) # no shutdown

RouterB (config-if) # exit

Step 2: Configure Telnet

Routeconfig # enable password yxh

! Configure the vro's privileged mode password

Routeconfig # line vty 0 4

! Enter thread Configuration Mode

Routeconfig-line # password yxh

! Configure the Telnet Password

Routeconfig-line # login

! Set authentication during Telnet Logon

Routeconfig-line # end

RouterB (config) # enable password yxh

RouterB (config) # line vty 0 4

RouterB (config-line) # password yxh

RouterB (config-line) # login

RouterB (config-line) # end

Step 3: test network connectivity and log on to the vrotelnet using Telnet

RouterB # ping 192.168.1.1

Sending 5, 100-byte ICMP Echoes to 192.168.1.1, timeout is 2 seconds:

<Press Ctrl + C to break>

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/10 MS

RouterB # telnet 192.168.1.1

Trying 192.168.1.1, 23...

User Access Verification

Password:

! Prompt for entering the Telnet password. Enter yxh here.

Route> en

Password:

! The system prompts you to enter the privileged mode password. Enter yxh here.

Route# en

! Log on to vroa A remotely and configure it.

Roupid #

Rouw.# conf t

Enter configuration commands, one per line. End with CNTL/Z.

Routeconfig # exit

Roupid #

Roupid #

Roupid # exit

! Use the exit command to log out of Telnet

RouterB #

Roupid # ping 192.168.1.2

Sending 5, 100-byte ICMP Echoes to 192.168.1.2, timeout is 2 seconds:

<Press Ctrl + C to break>

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/4/10 MS

Roupid # telnet 192.168.1.2

Trying 192.168.1.2, 23...

User Access Verification

Password:

RouterB> en

Password:

RouterB #

RouterB # conf t

Enter configuration commands, one per line. End with CNTL/Z.

RouterB (config) # exit

RouterB #

RouterB # exit

Roupid #

Note]

1. If the two routers are directly connected through the serial port, the clock frequency DCE must be set at one end ).

2. If the Telnet Password is not configured, the system prompts "Password required, but none set" during logon ".

3. If the enable Password is not configured, you cannot enter the privileged mode after logging on to the vro remotely. The message "Password required, but none set" is displayed ".

Reference Configuration]

Roupid # show running-config

Building configuration...

Current configuration: 582 bytes

!

Version RGNOS 10.1.00 (4), Release (18443) (Tue Jul 17 21:16:17 CST 2007-ubu1server)

Hostname roupid

!

!

Enable password 7 035122110c3706

!

Interface serial 4/0

Ip address 192.168.1.1 255.255.255.0

Clock rate 512000

!

Interface serial 4/1

Clock rate 64000

!

Interface GigabitEthernet 0/0

Duplex auto

Speed auto

!

Interface GigabitEthernet 0/1

Duplex auto

Speed auto

!

!

Line con 0

Line aux 0

Line vty 0 4

Login

Password 7 0133574225

!

End

RouterB # show running-config

Building configuration...

Current configuration: 562 bytes

!

Version RGNOS 10.1.00 (4), Release (18443) (Tue Jul 17 21:16:17 CST 2007-ubu1server)

Hostname RouterB

!

!

Enable password 7 0251563e120f3b

!

Interface serial 4/0

Ip address 192.168.1.2 255.255.255.0

!

Interface serial 4/1

Clock rate 64000

!

Interface GigabitEthernet 0/0

Duplex auto

Speed auto

!

Interface GigabitEthernet 0/1

Duplex auto

Speed auto

!

Line con 0

Line aux 0

Line vty 0 4

Login

Password 7 0059344251

!

End

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