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Appendix A
Introduction to the Cisco IOS: Hands-on Labs
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
8 Low-speed serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read ONLY)
Configuration register is 0x2102
The show version command tells you how long the router has been
running, how it was restarted, the IOS filename running, the model
hardware and processor versions, and the amount of DRAM. Also,
the configuration register value is listed last.
2.
You can view the router files by typing show running-config or
show startup-config
from privileged mode. The sh run command,
which is the shortcut for show running-config, tells us that we are
viewing the current configuration.
Router#sh run
Building configuration...
Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
ip subnet-zero
!
[output cut]
3.
The sh start command, which is the shortcut for the show startup-
config
command, shows us the configuration that will be used the
next time the router is reloaded and also shows us the amount of
NVRAM used to store the startup-config file.
Router#sh start
Using 4850 out of 32762 bytes
!
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