Bedienungsanleitung Draytek Vigor 2800 series (Seite 27 von 202) (Englisch)

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Vigor2800 Series User’s Guide 21

After finished basic configuration of the router, you can access Internet with ease. For the

people who want to adjust more setting for suiting his/her request, please refer to this chapter

for getting detailed information about the advanced configuration of this router. As for other

examples of application, please refer to chapter 4.

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IP means Internet Protocol. Every device in an IP-based Network including routers, print

server, and host PCs, needs an IP address to identify its location on the network. To avoid

address conflicts, IP addresses are publicly registered with the Network Information Centre

(NIC). Having a unique IP address is mandatory for those devices participated in the public

network but not in the private TCP/IP local area networks (LANs), such as host PCs under

the management of a router since they do not need to be accessed by the public. Hence, the

NIC has reserved certain addresses that will never be registered publicly. These are known as

private IP addresses, and are listed in the following ranges:

From 10.0.0.0 to 10.255.255.255

From 172.16.0.0 to 172.31.255.255

From 192.168.0.0 to 192.168.255.255

As the router plays a role to manage and further protect its LAN, it interconnects groups of

host PCs. Each of them has a private IP address assigned by the built-in DHCP server of the

Vigor router. The router itself will also use the default private IP address: 192.168.1.1 to

communicate with the local hosts. Meanwhile, Vigor router will communicate with other

network devices through a public IP address. When the data flow passing through, the

Network Address Translation (NAT) function of the router will dedicate to translate

public/private addresses, and the packets will be delivered to the correct host PC in the local

area network. Thus, all the host PCs can share a common Internet connection.

To acquire a public IP address from your ISP for Vigor router as a customer premises

equipment, there are three common protocols: Point to Point Protocol over Ethernet

(PPPoE), PPPoA and MPoA. Multi-PVC is provided for more advanced setup of the

above.

In ADSL deployment, the PPP (Point to Point)-style authentication and authorization is

required for bridging customer premises equipment (CPE). Point to Point Protocol over

Ethernet (PPPoE) connects a network of hosts via an access device to a remote access

concentrator or aggregation concentrator. This implementation provides users with

significant ease of use. Meanwhile it provides access control, billing, and type of service

according to user requirement.

When a router begins to connect to your ISP, a serial of discovery process will occur to ask

for a connection. Then a session will be created. Your user ID and password is authenticated

via PAP or CHAP with RADIUS authentication system. And your IP address, DNS server,

and other related information will usually be assigned by your ISP.

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