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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
• 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.
Two Cisco WAN interface card
(WIC) slots
• 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.
Console port Supports router configuration and management with a
directly-connected terminal or PC. Supports up to 115.2 kbps.
Auxiliary port Supports modem connection to the router, which can be
configured and managed from a remote location. Supports up to
115.2 kbps.
VPN hardware-assisted 3DES
encryption module
Provides IPSEC DES and 3DES hardware encryption.
SNMP support Router can be managed over a network using Simple Network
Management Protocol (SNMP).
AutoInstall support Configuration files can be easily downloaded to the router over
a WAN connection.
Kensington security slot Router can be secured to a desktop or other surface using
Kensington lockdown equipment.
Cisco ConfigMaker support You can set up networks that include the Cisco 1721 router
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.
Support for Cisco IOS software
features
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.