ZyXEL P-304 User Guide - Page 18

NAT Network Address Translation/SUA Single User Account, DHCP Support, Dynamic DNS Support

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Prestige 304 Broadband Sharing Gateway with 4-Port Switch NAT (Network Address Translation)/SUA (Single User Account) NAT (RFC 1631) or SUA allows the translation of an Internet Protocol address used within one network to a different IP address known within another network. NAT/SUA allows you to direct traffic to individual computers on your LAN, or to a designated DMZ computer, based on the port number request of incoming traffic. 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 Support 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, which means it can assign IP addresses, an IP default gateway and DNS servers to Windows 9X, Windows NT and other systems that support the DHCP client. The Prestige can also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the actual real DHCP server to the clients. Dynamic DNS Support With Dynamic DNS support, you can have a static host name 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 client. IP Multicast Traditionally, IP packets are transmitted in two ways - unicast or broadcast. Multicast is a third way to deliver IP packets to a group of hosts. 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 versions 1 and 2. PPPoE Support PPPoE facilitates the interaction of a host with a broadband modem to achieve access to high-speed data networks via a familiar "dial-up networking" user interface. PPTP Support Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of data from a remote client to a private server, creating a Virtual Private Network (VPN) using a TCP/IP-based network. PPTP supports on-demand, multi-protocol and virtual private networking over public networks, such as the Internet. Use PPTP to connect to a broadband modem to achieve access to high-speed data networks via a familiar "dial-up networking" user interface. 1-2 Getting to Know Your Prestige

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Prestige 304 Broadband Sharing Gateway with 4-Port Switch
1-2
Getting to Know Your Prestige
NAT (Network Address Translation)/SUA (Single User Account)
NAT (RFC 1631) or SUA allows the translation of an Internet Protocol address used within one network to a
different IP address known within another network. NAT/SUA allows you to direct traffic to individual
computers on your LAN, or to a designated DMZ computer, based on the port number request of incoming
traffic. 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 Support
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, which means it can assign IP addresses, an IP default gateway and DNS
servers to Windows 9X, Windows NT and other systems that support the DHCP client. The Prestige can also
act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the actual real
DHCP server to the clients.
Dynamic DNS Support
With Dynamic DNS support, you can have a static host name 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 client.
IP Multicast
Traditionally, IP packets are transmitted in two ways - unicast or broadcast.
Multicast is a third way to
deliver IP packets to a group of hosts. 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 versions 1
and 2.
PPPoE Support
PPPoE facilitates the interaction of a host with a broadband modem to achieve access to high-speed data
networks via a familiar "dial-up networking" user interface.
PPTP Support
Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of data from a
remote client to a private server, creating a Virtual Private Network (VPN) using a TCP/IP-based network.
PPTP supports on-demand, multi-protocol and virtual private networking over public networks, such as the
Internet. Use PPTP to connect to a broadband modem to achieve access to high-speed data networks via a
familiar "dial-up networking" user interface.