Cisco 2901 User Manual

A-2
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Appendix A Cisco IOS CLI for Initial Configuration
Using the Cisco IOS CLI to Perform Initial Configuration
Using the Cisco IOS CLI to Perform Initial Configuration
This section contains the following procedures:
• Configuring the Router Hostname, page A-2 (Optional)
• Configuring the Enable and Enable Secret Passwords, page A-3 (Required)
• Configuring the Console Idle Privileged EXEC Timeout, page A-5 (Optional)
• Configuring Gigabit Ethernet Interfaces, page A-6 (Required)
• Specifying a Default Route or Gateway of Last Resort, page A-8 (Required)
• Configuring Virtual Terminal Lines for Remote Console Access, page A-11 (Required)
• Configuring the Auxiliary Line, page A-13 (Optional)
• Verifying Network Connectivity, page A-14 (Required)
• Saving Your Router Configuration, page A-16 (Required)
• Saving Backup Copies of Configuration and System Image, page A-16 (Optional)
Configuring the Router Hostname
The hostname is used in CLI prompts and default configuration filenames. If you do not configure the
router hostname, the router uses the factory-assigned default hostname “Router.”
Do not expect capitalization and lower casing to be preserved in the hostname. Uppercase and lowercase
characters are treated as identical by many Internet software applications. It may seem appropriate to
capitalize a name as you would ordinarily do, but conventions dictate that computer names appear in all
lowercase characters. For more information, see RFC 1178, Choosing a Name for Your Computer.
The name must also follow the rules for Advanced Research Projects Agency Network (ARPANET)
hostnames. They must start with a letter, end with a letter or digit, and have as interior characters only
letters, digits, and hyphens. Names must be 63 characters or fewer. For more information, see RFC 1035,
Domain Names—Implementation and Specification.
SUMMARY STEPS
1. enable
2. configure terminal
3. hostname name
4. Verify that the router prompt displays your new hostname.
5. end

Cisco 2901 Specifications

General

Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 85 %
Ethernet LAN	Yes
Cabling technology	10/100/1000BASE-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
Ethernet LAN (RJ-45) ports	2
Firewall security	Cisco IOS
Input current	1.5 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	40 W
Product color	Black
Rack capacity	1U
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Flash memory	256 MB
Internal memory	512 MB
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	439.4 mm
Width	438.2 mm
Height	44.5 mm
Weight	6100 g