19216811.liveVigor2920 Series User’s Guide
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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
What are Public IP Address and Private IP Address
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.
Get Your Public IP Address from ISP
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.
Network Connection by 3G USB Modem
F For 3G mobile communication through Access Point is popular more and more, Vigor2920
adds the function of 3G network connection for such purpose. By connecting 3G USB Modem
to the USB port of Vigor2920, it can support HSDPA/UMTS/EDGE/GPRS/GSM and the
future 3G standard (HSUPA, etc). Vigor2920n with 3G USB Modem allows you to receive 3G
signals at any place such as your car or certain location holding outdoor activity and share the
bandwidth for using by more people. Users can use four LAN ports on the router to access
Internet. Also, they can access Internet via 802.11n wireless function of Vigor2920n, and
enjoy the powerful firewall, bandwidth management, VPN features of Vigor2920n series.
After connecting into the router, 3G USB Modem will be regarded as the second WAN port.
However, the original Ethernet WAN1 still can be used and Load-Balance can be done in the
router. Besides, 3G USB Modem in WAN2 also can be used as backup device. Therefore,
when WAN1 is not available, the router will use 3.5G for supporting automatically. The
VoIPon
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