ZyXEL p-320w Guia Do Utilizador

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P-320W User’s Guide
Chapter 1 Getting to Know Your Prestige
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Dynamic DNS Support
With Dynamic DNS (Domain Name System) 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.
IP Multicast
Deliver IP packets to a specific group of hosts using IP multicast. IGMP (Internet Group 
Management Protocol) is the protocol used to support multicast groups. The latest version is 
version 2 (see RFC 2236); the Prestige supports both versions 1 and 2.
SNMP
SNMP (Simple Network Management Protocol) is a protocol used for exchanging 
management information between network devices. SNMP is a member of the TCP/IP 
protocol suite. Your Prestige supports SNMP agent functionality, which allows a manager 
station to manage and monitor the Prestige through the network. The Prestige supports SNMP 
version one (SNMPv1) and version two (SNMPv2).  
Network Address Translation (NAT)
Network Address Translation (NAT) allows the translation of an Internet protocol address 
used within one network (for example a private IP address used in a local network) to a 
different IP address known within another network (for example a public IP address used on 
the Internet).
Traffic Redirect
Traffic Redirect forwards WAN traffic to a backup gateway on the LAN when the Prestige 
cannot connect to the Internet, thus acting as an auxiliary backup when your regular WAN 
connection fails.
Port Forwarding
Use this feature to forward incoming service requests to a server on your local network. You 
may enter a single port number or a range of port numbers to be forwarded, and the local IP 
address of the desired server.
DHCP (Dynamic Host Configuration Protocol)
DHCP (Dynamic Host Configuration Protocol) allows the individual client 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, which means it can assign IP addresses, 
an IP default gateway and DNS servers to all systems that support the DHCP client.