NETGEAR DG632 - ADSL Modem Router, Reference Manual

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Reference Manual for the Model DG632 ADSL Modem Router
Introduction 2-3
• Classical IP (RFC 1577)
Some Internet service providers, in Europe for example, use Classical IP in their ADSL
services. In such cases, the modem is able to use the Classical IP address from the ISP.
• PPP over Ethernet (PPPoE)
PPP over Ethernet is a protocol for connecting remote hosts to the Internet over an ADSL
connection by simulating a dial-up connection. This feature eliminates the need to run a login
program such as EnterNet or WinPOET on your computer.
• PPP over ATM (PPPoA)
PPP over ATM is a protocol for connecting remote hosts to the Internet over an ADSL
connection by simulating an ATM connection.
A Powerful, True Firewall
Unlike simple Internet sharing NAT routers, the DG632 is a true firewall, using stateful packet
inspection to defend against hacker attacks. Its firewall features include:
• Denial of Service (DoS) protection
Automatically detects and thwarts Denial of Service (DoS) attacks such as Ping of Death,
SYN Flood, LAND Attack and IP Spoofing.
• Blocks unwanted traffic from the Internet to your LAN.
• Blocks access from your LAN to Internet locations or services that you specify as off-limits.
• Logs security incidents
The DG632 will log security events such as blocked incoming traffic, port scans, attacks, and
administrator logins.
Auto Sensing and Auto Uplink™ LAN Ethernet Connections
The DG632 can connect to either a 10 Mbps standard Ethernet network or a 100 Mbps Fast
Ethernet network. The local LAN port is autosensing and capable of full-duplex or half-duplex
operation.
The modem incorporates Auto Uplink
TM
technology. The local Ethernet port will automatically
sense whether the Ethernet cable plugged into the port should have a ‘normal’ connection such as
to a computer or an ‘uplink’ connection such as to a switch or hub. That port will then configure
itself to the correct configuration. This feature also eliminates the need to worry about crossover
cables, as Auto Uplink will accommodate either type of cable to make the right connection.