1. CSE 304 Computer network lab lecture 02
Md. Mamunur Rashid Akand
Lecturer, Department of CSE, BUBT

2. Lab Requirements Setting IP address and Default Gateway of a switch
Console, Auxiliary, VTY line password
Configuration backup
Configuration restore
Using CISCO file system
Configure Telnet remote access

3. 1. Setting IP address of a switch
IP address of a switch is used to telnet a switch from remote device.
SW1>enable
SW1#configure terminal
SW1(config)#interface vlan1
SW1(config-if)#ip address
SW1(config-if)#no shutdown
SW1(config-if)#exit
SW1(config)#ip default-gateway
SW1(config)#exit
SW1#disable

4. 2. Console, Auxiliary, VTY line password
Console password:
SW1>enable
SW1#configure terminal
SW1(config)#line console 0
SW1(config-line)#login
SW1(config-line)#password cisco
SW1(config-line)#exit
SW1(config)#exit

5. 2. Console, Auxiliary, VTY line password (continued)
VTY(Virtual Type Terminal) line password:
SW1>enable
SW1#configure terminal
SW1(config)#line vty 0 ?
<0-15>last line number
SW1(config)#line vty 0 15
SW1(config-line)#login
SW1(config-line)#password cisco
SW1(config-line)#exit

6. 2. Console, Auxiliary, VTY line password (continued)
Auxiliary password:
SW1>enable
SW1#configure terminal
SW1(config)#line auxiliary 0
SW1(config-line)#login
SW1(config-line)#password cisco
SW1(config-line)#exit
SW1(config)#exit
*line auxiliary command is not supported by packet tracer.

7. 3. Configuration backup
SW1>enable SW1#copy running-config tftp Address or name of remote host []? Destination filename [SW1-config]?<press Enter> Writing… SW1#

8. 4. Configuration restore
SW1>enable SW1#copy tftp running-config Address or name of remote host []? Source filename []?SW1-config Destination filename [running-config]?<press Enter> Accessing tftp:// /SW1-config… SW1#

9. 5. CISCO file system
SW1#dir Directory of flash:/ 1 –rw- ………. SW1#dir nvram Directory of nvram:/

10. 6. Configure Telnet remote access
Configuration of router R1: Router>enable Router#config terminal Router(config)#hostname R1 R1(config)#enable secret cisco R1(config)#line vty 0 4 R1(config-line)#login R1(config-line)#password cisco R1(config-line)#exit R1(config)#interface serial 2/0 R1(config-if)#ip address R1(config-if)#clock rate R1(config-if)#no shutdown

11. 6. Configure Telnet remote access (continued)
Configuration of router R2:
Router>enable
Router#config terminal
Router(config)#hostname R2
R2(config)#interface serial 2/0
R2(config-if)#ip address
R2(config-if)#no shutdown

12. 6. Configure Telnet remote access (continued)
Commands for telneting from R2 to R1:
R2#telnet
Trying … open
User access verification
Password:cisco
R1>enable
R1#