Cisco 3925 User Manual

19
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Basic Router Configuration
Configuring Wireless LAN Interfaces
Configuring Wireless LAN Interfaces
The wireless LAN interface on the Cisco 1941W router enables connection to the router through
interface wlan-ap0. For more information about configuring a wireless connection, see the
“Configuring the Wireless Device” section on page 247.
Configuring Interface Card and Module Interfaces
To configure interface cards and modules inserted in internal services module (ISM), enhanced
high-speed WAN interface card (EHWIC), Ethernet WAN interface card (EWIC), and service module
(SM) slots, see the appropriate interface card or module configuration documents on Cisco.com.
Configuring a Loopback Interface
The loopback interface acts as a placeholder for the static IP address and provides default routing
information.
For complete information on the loopback commands, see the Cisco IOS Release configuration guide
documentation set.
To configure a loopback interface, follow these steps, beginning in global configuration mode.
SUMMARY STEPS
1. interface type number
2. ip address ip-address mask
3. exit
Step 3
no shutdown
Example:
Router(config-if)# no shutdown
Router(config-if)#
Enables the GE interface, changing its state
from administratively down to administratively
up.
Step 4
exit
Example:
Router(config-if)# exit
Router(config)#
Exits configuration mode for the GE interface
and returns to global configuration mode.
Command Purpose

Cisco 3925 Specifications

General

Product Type	Router
Form Factor	Rack-mountable
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Connectivity Technology	Wired
Power	AC 120/230 V (50/60 Hz)
Redundant Power Supply	Optional
Routing Protocol	OSPF, IS-IS, BGP, EIGRP, PIM
Network/Transport Protocol	IPSec
Remote Management Protocol	SNMP, Telnet, SSH, HTTP
Encryption Algorithm	DES, Triple DES, AES
Flash Memory	256 MB
Weight	11.5 kg
Interfaces	2 x SFP (mini-GBIC)
Power Source	Internal power supply
Authentication Method	RADIUS, TACACS+, LDAP
Compliant Standards	IEEE 802.1Q, IEEE 802.3af
Operating Temperature	0 to 40 °C
Operating Humidity	5% to 85% (non-condensing)
Dimensions (WxDxH)	44.5 x 47.2 x 8.9 cm