Information Technology Reference
In-Depth Information
Accessing Devices
Routers can be accessed and managed by the console through modem dial-up into the auxiliary
port, through a virtual terminal (i.e., Telnet), through asynchronous interfaces, or through
Simple Network Management Protocol (SNMP).
Console
When accessing router consoles, the terminal emulation is set as follows:
•
9600 baud rate
•
No parity
•
8 data bits
•
1 stop bit
•
No flow control
The console is configured as follows:
line con 0
password password
login
Auxiliary Port
This port is usually connected to a modem for remote access as follows:
line aux 0
password password
login
transport input all
modem autoconfigure discovery
exec-timeout 30 0
Telnet
You can reach a configured router through a virtual terminal (i.e., Telnet). Virtual terminal lines
are configured as follows:
line vty 0 4
password password
login
Asynchronous Interfaces
Terminal servers can access routers. A router with asynchronous interfaces can act as a terminal
server. Asynchronous lines are connected to the console interfaces of the routers. You can access
the terminal server through Telnet and then access all routers by using reverse Telnet. A loopback
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