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Figure 2
Cisco 1751 Routers provide all necessary capabilitiesto connect to the Internetand communicate withvendors,customers, and other employees
and offices.
The Cisco 1751 Router is available in two models that enable you to easily tailor an access solution to suit your
e-Business requirements today and in the future. See Table 1.
All Cisco 1751models offer three modular slots for voice and datainterface cards, an autosensing 10/100BaseT Fast
Ethernet LAN port supporting standards-based IEEE 802.1Q VLAN, a console port, and an auxiliary port. The
Cisco 1751 Router supports the same WAN interface cards as the Cisco 1600, 1700, 2600, and 3600 Series routers,
and the same voice interface cards and voice-over-IP (VoIP) technology as the Cisco 1700, 2600, and 3600 Series
routers. This simplifies support requirements. The WAN interface cards support a wide range of services, including
synchronous and asynchronous serial, Integrated Services Digital Network Basic Rate Interface (ISDN BRI), ADSL,
Table 1 The Cisco 1751 Modular Access Router
Cisco 1751
Base Model
Includes everything an office needs for data networking now (16 MB
Flash, 32 MB DRAM, and Cisco IOS IP software feature set), with a simple
upgrade path to full voice functionality. WAN interface cards are available
separately.
Cisco 1751-V
Multiservice Model
Includes all the features needed for immediate integration of data and
voice services with support for up to two voice channels (32 MB Flash and
64 MB DRAM, one DSP (PVDM-256K-4), and Cisco IOS IP Plus Voice
feature set). Voice and WAN interface cards are available separately.
Agents
E-Business
Application and
Web Servers
Telecommuter/
Branch Office
Cisco 1751
Series Router with
Cisco IOS Firewall
Cisco 1751
SerCisco IOith
Cisco IOS Firewall
Internet Service
Provider with
Hosted E-Mail
Service
Fax
ISDN/DSL/T1/FR
VPN Tunnels
ISP
Internet
Customers
Supplier
Router with
Router with
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