Cisco 1751 Veri Sayfası - Sayfa 8

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Ayrıca Cisco 1751 için: Çözüme Genel Bakış (16 sayfalar), Hızlı Başlangıç Kılavuzu (35 sayfalar)

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Security

Cisco IOS Software supports an extensive set of basic and advanced network security features, including access

control lists (ACLs); user authentication, authorization, and accounting (such as PAP/CHAP, TACACS+, and

RADIUS); and data encryption. To increase security, the integrated Cisco IOS Firewall Feature Set protects internal

LANs from attacks with context-based access control (CBAC) and Intrusion Detection (IDS), while IPSec tunneling

with data encryption standard DES and 3DES encryption provide standards-based data privacy, integrity, and

authenticity as data travels through a public network. Additionally, remote management applications, such as Cisco

Security Device Manager (SDM), make it easier than ever to deploy and monitor security applications on your Cisco

router.

The Cisco 1700 Series routers support the Cisco Easy VPN client feature that allows the routers to act as remote

VPN clients. As such, these devices can receive predeﬁned security policies from the headquarters' VPN head-end,

thus minimizing conﬁguration of VPN parameters at the remote locations. This solution makes deploying VPN

simpler for remote ofﬁces with little IT support or for large deployments where it is impractical to individually

conﬁgure multiple remote devices. While customers wishing to deploy and manage site-to-site VPN would beneﬁt

from Cisco Easy VPN client because of its simpliﬁcation of VPN deployment and management, managed VPN service

providers and enterprises who must deploy and manage numerous remote sites and branch ofﬁces with IOS routers

for VPN will realize the greatest beneﬁt.

The Cisco 1700 Series routers also support the Cisco Uniﬁed VPN Access Server feature that allows a Cisco 1700

router to act as a VPN head-end device. In site-to-site VPN environments, the Cisco 1700 router can terminate VPN

tunnels initiated by the remote ofﬁce routers using the Cisco Easy VPN client. Security policies can be pushed down

to the remote ofﬁce routers from the Cisco 1700 Series routers. In addition to terminating site-to-site VPNs, a Cisco

1700 Series router running the Uniﬁed VPN Access Server can terminate remote access VPNs initiated by mobile and

remote workers running Cisco VPN client software on PCs. This ﬂexibility makes it possible for mobile and remote

workers, such as sales people on the road, to access company intranet where critical data and applications exist.

For remote access, VPNs, Layer 2 Forwarding (L2F), and Layer 2 Tunneling Protocol (L2TP) combine with IPSec

encryption to provide a secure multiprotocol solution for IP, IPX, and AppleTalk trafﬁc, and more. Mobile users can

dial in to a service provider's local point of presence (POP) and data is "tunneled" (or encapsulated inside a second

protocol such as IPSec or L2TP) back to the Cisco 1751 router to securely access the corporate network via

the Internet.

Cisco IOS Software QoS Features

Through Cisco IOS Software, the Cisco 1751 Router delivers quality of service (QoS) capabilities, including Resource

ReSerVation Protocol (RSVP), Weighted Fair Queuing (WFQ), Committed Access Rate (CAR), and IP Precedence.

These features enable businesses to prioritize trafﬁc on their networks by user, application, trafﬁc type, and other

parameters, to ensure that business-critical data and delay-sensitive voice are appropriately prioritized.

Because the Cisco 1751 Router provides robust voice compression, up to 8 voice calls can occupy a single 64K data

channel simultaneously, without compromising data performance. Cisco IOS voice compression technology

integrates data and voice trafﬁc to enable efﬁcient use of existing data networks.

Cisco Systems, Inc.

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