Cisco 1720 Manual de usuario Pagina 9

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Copyright © 1998 Cisco Systems, Inc. All Rights Reserved.
Page 9 of 14
Note: FW above denotes Cisco IOS Firewall. Encryption is offered in special encryption feature sets (Plus 40, Plus IPSec 56, and
Plus IPSec 3DES). *CAR, CEF, and NetFlow supported with Cisco IOS Release 12.0(3)T and up. To build an IP VPN, the
recommended images are IP Firewall Plus IPSec 56 or IP Firewall Plus IPSec 3DES.
Random Early Detection (RED) x x x x x x x x x
Cisco Express Forwarding (CEF)* x x x x x x x x x
Committed access rate (CAR)* x x x x x x x x x
NetFlow* x x x x x x x x x
RTP Header Compression
(RTP-HC)
xxxx x x x x x
Multimedia IP Multicast (Protocol
Independent multicast or PIM)
xxxx x x x x x
AppleTalk SMRP (Multicast) xx
Management Network Timing Protocol (NTP) x x x x x x x x x
Category Plus Protocols/Features
IP
Plus
IP
Plus
40
IP
Plus
IPSe
c 56
IPPlus
IPSec
3DES
IP FW
Plus
IPSec
56
IP FW
Plus
IPSec
3DES
IP/IPX
FW
Plus
IP/IPX/
AT/IBM
FW Plus
IPSec 56
IP/IPX/
AT/IBM
FW Plus
IPSec
3DES
Applications
The Cisco 1720 router extends the leadership capabilities of
the Cisco 1600 series for small/medium businesses and small
branch offices. In addition to the flexible, secure Internet/
intranet access solutions provided by the Cisco 1600 routers,
the Cisco 1720 is also ideal for the application examples
that follow.
Figure 4 Access/Intranet/Extranet VPNs for Small/Medium Businesses
CNO Switch
CNO Switch
CNO Switch
SMB A
Small Main Office
Access VPN Home Gateway
Firewall
Cisco 1720
CNO Hub
CNO Hub
SMB A
Small Branch
SMB A
Mobile
Workers
Firewall
Cisco 1720
CNO Hub
CNO Hub
CNO Hub
SMB B
Supplier or
Customer
Firewall
Cisco 1720
Internet
Encryted tunnels
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