Cisco 3825 Series, Software Configuration Manual, Page: 66 / 358

4-8
Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
OL-15667-03
Chapter 4 Configuring the Cisco 3825 Mobile Wireless Edge Router in a RAN-O Solution with the Command-Line
Configuration Sequence
Check the hostname and encrypted password, which are displayed near the top of the command output.
Step 2 Exit global configuration mode and attempt to reenter it, using the new enable password:
Router# exit
.
.
.
Router con0 is now available
Press RETURN to get started.
Router> enable
Password: password
Router#
Configuring Gigabit Ethernet Interfaces
To configure the Gigabit Ethernet (GE) interface on the Cisco 3825 router, complete the following tasks:
• Configuring the GE Interface IP Address
•
Setting the Speed and Duplex Mode, page 4-8
• Enabling the GE Interface, page 4-9
Configuring the GE Interface IP Address
Use the following instructions to perform a basic GE IP Address configuration: specifying the port
adapter and aligning an IP address and subnet mask of the interface.
Note
In the following procedure, press the Return key after each step unless otherwise noted. At any time,
you can exit the privileged level and return to the user level by entering disable at the
Router#
prompt.
To configure the GE interface, follow these steps, while in the global configuration mode:
Step 1
Specify the port adapter type and the location of the interface to be configured.
Router(config)# interface gigabitethernet slot / port
The slot represents the main fixed slots and is always 0 and the port is the number of the port (0 or 1).
Step 2
Assign an IP address and subnet mask to the interface.
Router(config-if)# ip address ip_address subnet_mask
Setting the Speed and Duplex Mode
The GE ports of the Cisco 3825 router can run in full- or half- duplex mode and at 1000 Mbps, 100 Mbps,
or 10 Mbps. The Cisco 3825 router has an auto-negotiation feature that allows the router to negotiate the
speed and duplex mode with the corresponding interface at the other end of the connection.
Auto-negotiation is the default setting for the speed and transmission mode.