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Used Cisco 2821 Router - Part #:
Cisco2821

Integrated Services for Small and Medium Business
The Cisco 2821 Integrated Services Router is part of the Cisco 2800
Integrated Services Router Series which complements the Integrated
Services Router Portfolio.
The Cisco 2821 Integrated Services Router provides the following
support:
* Wire-speed performance for concurrent services such as security
and voice , and advanced services to multiple T1/E1/xDSL WAN rates
* Enhanced investment protection through increased performance and
modularity
* Enhanced investment protection through increased modularity
* Increased density through High-Speed WAN Interface Card Slots (four)
* Enhanced Network Module Slot
* Support for over 90 existing and new modules
* Support for majority of existing AIMs, NMs, WICs, VWICs, and VICs
* Two Integrated 10/100/1000 Ethernet ports
* Optional Layer 2 switching support with Power over Ethernet (PoE)
(as an option)
* Security
o On-board encryption
o Support of up to 1500 VPN tunnels with the AIM-EPII-PLUS Module
o Antivirus defense support through Network Admission Control (NAC)
o Intrusion Prevention as well as stateful Cisco IOS Firewall support
and many more essential security features
* Voice
o Analog and digital voice call support
o Dedicated Extension Voice Module slot
o Optional voice mail support
o Optional support for Cisco CallManager Express (Cisco CME) for local
call processing in stand alone business for up to48 IP Phones
o Optional support for Survivable Remote Site Telephony support for
local call processing in small enterprise branch offices for up to
48 IP phones