ZyXEL Communications P-792H User Manual page 406

Appendix A Product Specifications
Table 145 Firmware Features
FEATURE
Firmware Upgrade
Configuration Backup &
Restoration
Network Address
Translation (NAT)
Port Forwarding
DHCP (Dynamic Host
Configuration Protocol)
Dynamic DNS Support
IP Multicast
IP Alias
Time and Date
Logging and Tracing
PPPoE
PPTP Encapsulation
Universal Plug and Play
(UPnP)
Firewall
406
DESCRIPTION
Download new firmware (when available) from the ZyXEL web
site and use the web configurator, an FTP or a TFTP tool to put
it on the P-792H v2.
Note: Only upload firmware for your specific model!
Make a copy of the P-792H v2's configuration. You can put it
back on the P-792H v2 later if you decide to revert back to an
earlier configuration.
Each computer on your network must have its own unique IP
address. Use NAT to convert your public IP address(es) to
multiple private IP addresses for the computers on your
network.
If you have a server (mail or web server for example) on your
network, you can use this feature to let people access it from
the Internet.
Use this feature to have the P-792H v2 assign IP addresses, an
IP default gateway and DNS servers to computers on your
network.
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 is used to send traffic to a specific group of
computers. The P-792H v2 supports versions 1 and 2 of IGMP
(Internet Group Management Protocol) used to join multicast
groups (see RFC 2236).
IP alias allows you to subdivide a physical network into logical
networks over the same Ethernet interface with the P-792H v2
itself as the gateway for each subnet.
Get the current time and date from an external server when
you turn on your P-792H v2. You can also set the time
manually. These dates and times are then used in logs.
Use packet tracing and logs for troubleshooting. You can send
logs from the P-792H v2 to an external syslog server.
PPPoE mimics a dial-up Internet access connection.
Point-to-Point Tunneling Protocol (PPTP) enables secure
transfer of data through a Virtual Private Network (VPN). The
P-792H v2 supports one PPTP connection at a time.
A UPnP-enabled device can dynamically join a network, obtain
an IP address and convey its capabilities to other devices on
the network.
You can configure firewall on the P-792H v2 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.
P-792H v2 User's Guide