Cisco Router Configuration Modes
From privileged EXEC mode, you can enter global con?¬?guration mode, providing access
to the speci?¬?c router con?¬?guration modes. Figure 4-26 illustrates the different con?¬?guration
modes and shows how to navigate them.
Configuration register is 0x2102
RouterX#
Example 4-9 show version Command Output (Continued)
284 Chapter 4: LAN Connections
Figure 4-26 Navigating Con?¬?guration Modes
The ?¬?rst step in con?¬?guring a Cisco router is to use the setup utility. Setup allows you to
create a basic initial con?¬?guration. For more complex and speci?¬?c con?¬?gurations, you can
use the CLI to enter terminal con?¬?guration mode.
From the privileged EXEC mode, you can enter the global con?¬?guration mode with the
con?¬?gure terminal command. From the global con?¬?guration mode, you can access the
speci?¬?c con?¬?guration modes, which include the following:
?– Interface: Supports commands that con?¬?gure operations on a per-interface basis
?– Subinterface: Supports commands that con?¬?gure multiple virtual interfaces on a
single physical interface
?– Controller: Supports commands that con?¬?gure controllers (for example, E1 and T1
controllers)
?– Line: Supports commands that con?¬?gure the operation of a terminal line; for example,
the console or the vty ports
?– Router: Supports commands that con?¬?gure an IP routing protocol
If you enter the exit command, the router will back out one level, eventually logging out.
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