Vigor2920 Series User’s Guide
120
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
W
W
h
h
a
a
t
t
a
a
r
r
e
e
P
P
u
u
b
b
l
l
i
i
c
c
I
I
P
P
A
A
d
d
d
d
r
r
e
e
s
s
s
s
a
a
n
n
d
d
P
P
r
r
i
i
v
v
a
a
t
t
e
e
I
I
P
P
A
A
d
d
d
d
r
r
e
e
s
s
s
s
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.
G
G
e
e
t
t
Y
Y
o
o
u
u
r
r
P
P
u
u
b
b
l
l
i
i
c
c
I
I
P
P
A
A
d
d
d
d
r
r
e
e
s
s
s
s
f
f
r
r
o
o
m
m
I
I
S
S
P
P
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.
N
N
e
e
t
t
w
w
o
o
r
r
k
k
C
C
o
o
n
n
n
n
e
e
c
c
t
t
i
i
o
o
n
n
b
b
y
y
3
3
G
G
/
/
4
4
G
G
U
U
S
S
B
B
M
M
o
o
d
d
e
e
m
m
For 3G/4G mobile communication through Access Point is popular more and more,
Vigor2920 adds the function of 3G/4G network connection for such purpose. By connecting
3G/4G USB Modem to the USB port of Vigor2920, it can support
HSDPA/UMTS/EDGE/GPRS/GSM and the future 3G/4G standard (HSUPA, etc).
Vigor2920n/Vn with 3G/4G USB Modem allows you to receive 3G/4G 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 Vigor2920/Vn, and enjoy the powerful
firewall, bandwidth management, VPN features of Vigor2920n/Vn series.
Summary of Contents for Vigor2920 Series
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