User's Manual

Chapter 27 Product Specifications and Wall-Mounting Instructions
NBG-460N User’s Guide
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Firewall You can configure firewall on the NBG-460N for secure Internet
access. When the firewall is on, by default, all incoming traffic
from the Internet to your network is blocked unless it is
initiated from your network. This means that probes from the
outside to your network are not allowed, but you can safely
browse the Internet and download files for example.
Content Filter The NBG-460N blocks or allows access to web sites that you
specify and blocks access to web sites with URLs that contain
keywords that you specify. You can define time periods and
days during which content filtering is enabled. You can also
include or exclude particular computers on your network from
content filtering.
You can also subscribe to category-based content filtering that
allows your NBG-460N to check web sites against an external
database.
IPSec VPN This allows you to establish a secure Virtual Private Network
(VPN) tunnel to connect with business partners and branch
offices using data encryption and the Internet without the
expense of leased site-to-site lines. The NBG-460N VPN is
based on the IPSec standard and is fully interoperable with
other IPSec-based VPN products.
Bandwidth Management You can efficiently manage traffic on your network by reserving
bandwidth and giving priority to certain types of traffic and/or
to particular computers.
Wireless LAN Scheduler You can schedule the times the Wireless LAN is enabled/
disabled.
Time and Date Get the current time and date from an external server when
you turn on your NBG-460N. You can also set the time
manually. These dates and times are then used in logs.
Port Forwarding If you have a server (mail or web server for example) on your
network, then use this feature to let people access it from the
Internet.
DHCP (Dynamic Host
Configuration Protocol)
Use this feature to have the NBG-460N assign IP addresses, an
IP default gateway and DNS servers to computers on your
network.
Dynamic DNS Support With Dynamic DNS (Domain Name System) support, you can
use a fixed URL, www.zyxel.com for example, with a dynamic
IP address. You must register for this service with a Dynamic
DNS service provider.
IP Multicast IP Multicast is used to send traffic to a specific group of
computers. The NBG-460N supports versions 1 and 2 of IGMP
(Internet Group Management Protocol) used to join multicast
groups (see RFC 2236).
IP Alias IP Alias allows you to subdivide a physical network into logical
networks over the same Ethernet interface with the NBG-460N
itself as the gateway for each subnet.
Logging and Tracing Use packet tracing and logs for troubleshooting. You can send
logs from the NBG-460N to an external syslog server.
PPPoE PPPoE mimics a dial-up Internet access connection.
Table 119 Firmware Features
FEATURE DESCRIPTION