Netgear UTM9S – ProSECURE Unified Threat Management (UTM) Appliance with DSL and Wireless modules Manual De Referência

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Introduction
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ProSecure Unified Threat Management (UTM) Appliance 
Ethernet network. The four LAN and one or two WAN interfaces are autosensing and capable 
of full-duplex or half-duplex operation. 
The UTM incorporates Auto Uplink
TM
 technology. Each Ethernet port automatically senses 
whether the Ethernet cable plugged into the port should have a normal connection such as to 
a PC or an uplink connection such as to a switch or hub. That port then configures itself 
correctly. This feature eliminates the need for you to think about crossover cables, as Auto 
Uplink accommodates either type of cable to make the right connection.
Extensive Protocol Support
The UTM supports the Transmission Control Protocol/Internet Protocol (TCP/IP) and Routing 
Information Protocol (RIP). For further information about TCP/IP, see 
on page 558. The UTM provides the following protocol support:
•     
IP address sharing by NAT. The UTM allows many networked PCs to share an Internet 
account using only a single IP address, which might be statically or dynamically assigned 
by your Internet service provider (ISP). This technique, known as Network Address 
Translation (NAT), allows the use of an inexpensive single-user ISP account.
•     
Automatic configuration of attached PCs by DHCP. The UTM dynamically assigns 
network configuration information, including IP, gateway, and Domain Name Server 
(DNS) addresses, to attached PCs on the LAN using the Dynamic Host Configuration 
Protocol (DHCP). This feature greatly simplifies configuration of PCs on your local 
network.
•     
DNS proxy. When DHCP is enabled and no DNS addresses are specified, the firewall 
provides its own address as a DNS server to the attached PCs. The firewall obtains 
actual DNS addresses from the ISP during connection setup and forwards DNS requests 
from the LAN.
•     
PPP over Ethernet (PPPoE). PPPoE is a protocol for connecting remote hosts to the 
Internet over a DSL connection by simulating a dial-up connection.
•     
Quality of Service (QoS). The UTM supports QoS, including traffic prioritization and 
traffic classification with Type of Service (ToS) and Differentiated Services Code Point 
(DSCP) marking.
Easy Installation and Management
You can install, configure, and operate the UTM within minutes after connecting it to the 
network. The following features simplify installation and management tasks:
•     
Browser-based management. Browser-based configuration allows you to easily 
configure the UTM from almost any type of operating system, such as Windows, 
Macintosh, or Linux. A user-friendly Setup Wizard is provided, and online help 
documentation is built into the browser-based web management interface.
•     
Autodetection of ISP. The UTM automatically senses the type of Internet connection, 
asking you only for the information required for your type of ISP account.