Konfigurasi Telnet

RBJ	Tittle	:	Konfigurasi Telnet
	Issue Date	:	27 September 2016
	Prepare by	:	Siti Octavianah
	Teacher	:	Suyatno, S.Kom
	SMK AL-BAHRI KOTA BEKASI

Device	Interface	IP Address
PC-0	Fa0	192.168.10.10.24
Router 0	Fa0/0	12.168.10.1/24

Pasang IP Address di router interface Fa0/0

Router>enable

Router#configure terminal

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

Router(config)#interface fastEthernet0/0

Router(config-if)#ip address 192.168.10.1 255.255.255.0

Router(config-if)#no shutdown                                              

Setting authentication di line telnet , jika ada PC yang hendak telnet ke router maka akan diminta password authentication :

Router(config-if)#line vty 0 4

Router(config-line)#password ccie

Router(config-line)#login                                                              

Outputnya akan seperti ini :

Packet Tracer PC Command Line 1.0

PC>telnet 192.168.10.1

Trying 192.168.10.1 ...Open

User Access Verification

Password:

Router>en

% No password set.

Router>                                               

Artinya kita bisa masuk ke router tetapi tidak bisa masuk ke mode privilege , nah agar kita bisa masuk ke privilege mode maka kita harus setting routernya :

Router>enable

Router#configure terminal

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

Router(config)#enable password ccie

PC>telnet 192.168.10.1

Trying 192.168.10.1 ...Open

User Access Verification

Password:

Router>enable

Password:

Router#configure terminal

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

Router(config)#

Settingan yang tadi kita buat masih kelemahannya yaitu password yang kita buat masih bisa di baca pada saat menampilkan “show run” , lebih baiknya dienkripsi terlebih dahulu 

Router(config)#do sh run

Hasilnya password dapat dilihat

Building configuration...

Current configuration : 541 bytes

version 12.4

no service timestamps log datetime msec

no service timestamps debug datetime msec

no service password-encryption

hostname Router

enable password ccie                                   

Agar password tidak kelihatan maka kita perlu masukan script ini :

Router(config)#service password-encryption

Router(config)#do sh run

Building configuration...

Current configuration : 554 bytes

version 12.4

no service timestamps log datetime msec

no service timestamps debug datetime msec

service password-encryption

hostname Router

enable password 7 08224F470C