ZyXEL Communications Prestige 2602H Series - Manual (Page 51)

Prestige 2602H/HW Series User’s Guide
Chapter 1 Getting To Know Your Prestige 51
SIP ALG
The Prestige 2602HW is a SIP Application Layer Gateway (ALG). It allows VoIP calls to pass
through NAT for devices behind the Prestige (such as a SIP-based VoIP software application
on a computer).
Traffic Redirect
Traffic redirect forwards WAN traffic to a backup gateway when the Prestige cannot connect
to the Internet, thus acting as an auxiliary if your regular WAN connection fails.
Universal Plug and Play (UPnP)
Using the standard TCP/IP protocol, the Prestige and other UPnP enabled devices can
dynamically join a network, obtain an IP address and convey its capabilities to other devices
on the network.
PPPoE Support (RFC2516)
PPPoE (Point-to-Point Protocol over Ethernet) emulates a dial-up connection. It allows your
ISP to use their existing network configuration with newer broadband technologies such as
ADSL. The PPPoE driver on the Prestige is transparent to the computers on the LAN, which
see only Ethernet and are not aware of PPPoE thus saving you from having to manage PPPoE
clients on individual computers.
Dynamic DNS Support
With Dynamic DNS support, you can have a static hostname alias for a dynamic IP address,
allowing the host to be more easily accessible from various locations on the Internet. You must
register for this service with a Dynamic DNS service provider.
DHCP
DHCP (Dynamic Host Configuration Protocol) allows the individual clients (computers)
to obtain the TCP/IP configuration at start-up from a centralized DHCP server. The
Prestige has built-in DHCP server capability enabled by default. It can assign IP
addresses, an IP default gateway and DNS servers to DHCP clients. The Prestige can now
also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment
from the actual real DHCP server to the clients.
Multiple PVC (Permanent Virtual Circuits) Support
Your Prestige supports up to 8 PVC’s.
IP Alias
IP Alias allows you to partition a physical network into logical networks over the same
Ethernet interface. The Prestige supports three logical LAN interfaces via its single physical
Ethernet interface with the Prestige itself as the gateway for each LAN network.