Cisco 3825 - Manual (Page 51)

C H A P T E R
3-1
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
OL-15667-03
3
First-Time Configuration
This chapter contains information with which you should be familiar before you begin to configure your
router for the first time, including information about understanding boot images, interface numbering,
and what you should do before you turn on your router. This chapter also describes how to use the setup
command facility to configure your Cisco 3825 Mobile Wireless Edge Router.
This chapter includes the following sections:
• Setup Command Facility, page 3-3
• Configuring Global Parameters, page 3-4
• Completing the Configuration, page 3-7
Understanding Boot Images
The first file on the compact flash device in slot0: must be the Cisco IOS software image that you want
to use. If it is not, the Cisco 3825 router will not be able to boot.
Understanding the Cisco 3825 Router Interface Numbering
Each network interface on a Cisco 3825 router is identified by a slot number, subslot number, and a port
number.
Figure 3-1 on page 3-2 shows an example of interface numbering on a Cisco 3825 router:
• A Cisco 2-port T1/E1-RAN interface card in each of the four Cisco 2-port T1/E1-RAN slots (labeled
HWIC0, HWIC1, HWIC2, and HWIC3) [high-speed WIC]
• Two built-in Gigabit Ethernet (GE) interfaces (labeled GE 0/0 and GE 0/1)