Cisco Systems 1721 User Manual
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Cisco 1721 Router Overview
This chapter introduces the Cisco 1721 router, also referred to in this guide as the
router, and covers the following topics:
• Key Features
• Back Panel Ports and LEDs
• Front Panel LEDs
• Router Memory
• Unpacking the Router
• Additional Required Equipment
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Key Features
Key Features
The Cisco 1721 router (see Figure 1-1) is a small, modular desktop router that
links small- to medium-size remote Ethernet and Fast Ethernet LANs over one to
four WAN connections to regional and central offices. Tab le 1-1 lists the key
features of the router.
Figure 1-1 Cisco 1721 Router
Chapter 1 Cisco 1721 Router Overview
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Cisco 1721 Router Hardware Installation Guide
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Chapter 1 Cisco 1721 Router Overview
Key Features
Table 1-1 Key Features
Feature Description
One Fast Ethernet
(10/100BASE-TX) port
Two Cisco WAN interface card
(WIC) slots
Console port Supports router configuration and management with a
Auxiliary port Supports modem connection to the router, which can be
VPN hardware-assisted 3DES
encryption module
SNMP support Router can be managed over a network using Simple Network
AutoInstall support Configuration files can be easily downloaded to the router over
Kensington security slot Router can be secured to a desktop or other surface using
Cisco ConfigMaker support You can set up networks that include the Cisco 1721 router
Support for Cisco IOS software
features
• Operates in full- or half-duplex mode (with manual
override available).
• Supports autosensing for 10- or 100-Mbps operation.
• Supports IEEE 802.1Q VLAN encapsulation.
• Supports a combination of any two of the following WICs:
ISDN BRI, 56-kbps DSU/CSU, FT1/T1 DSU/CSU,
high-speed serial, dual-serial, ADSL, G.SHDSL, and
Ethernet.
• The WAN interface configuration can be changed as your
network requirements change.
directly-connected terminal or PC. Supports up to 115.2 kbps.
configured and managed from a remote location. Supports up to
115.2 kbps.
Provides IPSEC DES and 3DES hardware encryption.
Management Protocol (SNMP).
a WAN connection.
Kensington lockdown equipment.
using the Cisco ConfigMaker application, a wizards-based
software tool that helps you easily configure and address Cisco
routers, access servers, hubs, switches, and networks.
Supports IP, IPX, AppleTalk, IBM, Open Shortest Path First
(OSPF), NetWare Link Services Protocol (NLSP), Resource
Reservation Protocol (RSVP), encryption, network address
translation, and the Cisco IOS Firewall Feature Set.
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