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Cisco 12404 Internet Router Installation and Configuration Guide
OL-11636-01
Chapter 3 Installing the Cisco 12404 Internet Router
Cisco IOS Software Images
Cisco IOS Software Images
A default Cisco IOS software image for your system is available through any of
the following internal or external sources(
Conditions to Check before System Startup
This section provides information on items to check before you startup the router.
•
All cards are completely inserted into their card cage slots.
•
All captive screws are tightened.
•
All interface cable connections are secure.
•
All the power source cables are secured to the power modules.
•
All power cables are connected to the appropriate power source.
•
A terminal device is connected, powered on and configured to 9600 bps,
8 data bits, no parity, and 2 stop bits (9600,8,N,2).
•
A Flash memory card containing a valid Cisco IOS software image is inserted
in PCMCIA slot 0 (zero).
Table 3-16
Cisco IOS Software Image Sources
Cisco Software
Image
Source
Onboard Flash
Memory on the RP
The latest Cisco IOS software image is loaded into the Flash memory, a single
inline memory module (SIMM) is preloaded at the factory before the router is
shipped. The Flash memory SIMM is also referred to as nonvolatile random
access memory (NVRAM). This type of memory retains its contents when you
turn off system power.
Flash Memory Card
A Flash memory card inserted in a PCMCIA slot on the RP, and loaded with the
default software image, can serve as an external storage medium for the default
Cisco IOS software image shipped with your router.
TFTP Server
You can download and store a valid Cisco IOS software image via a Trivial File
Transfer Protocol (TFTP) using a Telnet connection.
todd.book Page 40 Tuesday, November 27, 2007 6:02 PM