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Cisco Terminal Levels, Wan Connections Tipes, Point-to-Point Protocol PPP,…
Cisco Terminal Levels
Press enter
Exec Mode (>)
enable or disable to go back
Privileged or enable mode (#)
show and debug commands
type Configure <terminal | network | Memory>
Global Configuration or Config Mode
Network
Memory
Configure Terminal
Terminal--> Router (config)#
int fa 0/0
1 more item...
Router <command>: rip, ospf... etc
1 more item...
Wan Connections Tipes
Circuit Switching
Low Speeds, Cost Effective
Leased Lines Point to Point
Packet Switching
Point-to-Point Protocol PPP
Network Control Protocol
2 components
Link Control Protocol
Options
:
Authentication
Compression
error detection
Multilink
Authentication
PAP (password Auth. Protocol)
two way hanshake, weak unencrypted
(CHAP) Challenge Handshake Auth Protocol
3 way handshake, MD5 encrypted
Commands:
:pencil2:encapsulation ppp
:pencil2:ppp authentication chap pap
Telnet Access Config
from terminal config mode: line vty 0 <last line> (i.e line vty 0 903)
enter Virtual Term config Mode
login local
local password checking