XH1151 – DSE Broadband Router
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IPSec – IP Security
IPSec provides a more secure network-to-network connection across the Internet or a Wide
Area Network (WAN). IPSec encrypts all communication between the client and server whereas
PPTP only encrypts the data packets. Both of these VPN implementations are used because
there is not a standard for VPN server software. Because of this, each ISP or business can
implement its own VPN network making interoperability a challenge.
DHCP – Dynamic Host Configuration Protocol
DHCP is a protocol for dynamically assigning IP addresses to networked computers. With
DHCP, a computer can automatically be given a unique IP address each time it connects to a
network - making IP address management an easier task for network administrators. When a
computer logs on to the network, the DHCP server selects an IP address from a master list and
assigns it to the system.
NAT – Network Address Translation
For a computer to communicate with other computers on the Internet, it must have an IP
address. An IP (Internet Protocol) address is a unique 32-bit number that identifies the location
of your computer on a network. However, with the explosion of the Internet, the number of
available IP addresses are simply not enough. This is where NAT comes to the rescue. Network
Address Translation allows a single device, such as a router, to act as an agent between the
Internet (or "public network") and a local (or "private") network. This means that only a single,
unique IP address is required to represent an entire group of computers.
Printer Server
A Printer Server allows networked PCs to share the same printer on the network, only the
networked PC has the printer driver without physical connection directly with printer.
DDNS – Dynamic Domain Name System Server
Domain Name System Server is a server that matches URLs (such as www.router-net.com) to
numeric IP addresses.
TCP/IP
Transmission Control Protocol (TCP) with Internet Protocol (IP). The main internetworking
protocol used in the Internet.
PPPoE – PPP (Point-to-Point Protocol) over Ethernet
PPP is the standard Internet protocol for dial-up connections. PPPoE is for connecting remote
hosts to the Internet over an always-on connection by simulating a dial-up connection.
UDP – User Datagram Protocol
UDP provides a procedure for application programs to send messages to other programs with a
minimum of protocol mechanism. The protocol is transaction oriented, and delivery and
duplicate protection is not guaranteed. Applications requiring ordered reliable delivery of
streams of data should use the TCP.
