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Page 46 / 241 Scroll up to view Page 41 - 45
Vigor2130 Series User’s Guide
38
Redial Policy
If you want to connect to Internet all the time, you can choose
Always On
. Otherwise, choose
Connect on Demand
and
Idle Time Out
Set the timeout for breaking down the Internet after passing
through the time without any action. When you choose
Connect
on Demand,
you have to type value here.
MTU Size
It means Max Transmit Unit for packet. The default
setting is 1442.
Clone MAC Address
It is available when the box of Enable is checked. Click
Clone
MAC Address
. The result will be displayed in the field of
MAC Address.
After finishing all the settings here, please click
OK
to activate them.
3G USB Modem
If your router connects to a 3G modem and you want to access Internet via 3G modem, choose
3G as connection type and type the required information in this web page.
SIM PIN code
Type PIN code of the SIM card that will be used to access
Internet.
Modem Initial String1/2
Such value is used to initialize USB modem. Please use the
default value. If you have any question, please contact to your
ISP.
APN Name
APN means Access Point Name which is provided and
required by some ISPs.
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Vigor2130 Series User’s Guide
39
Modem Dial String
Such value is used to dial through USB mode. Please use the
default value. If you have any question, please contact to your
ISP.
PPP Username
Type the PPP username (optional).
PPP Password
Type the PPP password (optional).
Clone MAC Address
It is available when the box of Enable is checked. Click
Clone
MAC Address
. The result will be displayed in the field of
MAC Address.
After finishing all the settings here, please click
OK
to activate them.
3.1.2 Ports
Ports page is used to change the setting for WAN port. You can set or reset the following
items. All of them are described in detail below.
Port
It displays current network interface.
Link
It displays current connection status. Green light means the
WAN connection is successful.
Current
It displays current speed that the router uses.
Speed Configured
It can set the speed and duplex of the port. You can use the drop
down list to choose the required speed for the router. If you
have no idea in configuring speed, simple use the default setting,
Auto
.
Flow Control
If flow control is enabled by checking
Configured
box, both
parties can send PAUSE frame to the transmitting device(s) if
the receiving port is too busy to handle. If not, there will be no
flow control in the port. It drops the packet if too much to
handle.
Current Rx: indicates whether pause frames on the port are
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Vigor2130 Series User’s Guide
40
obeyed.
Current Tx: indicates whether pause frames on the port are
transmitted.
Maximum Frame
This module offers 1518~9600 (Bytes) length to make the long
packet for data transmission.
Excessive Collision Mode
There are two modes for you to choose when excessive
collision happened in half-duplex condition.
Discard
- It determines whether the MAC drops frames after an
excessive collision has occurred. If yes, a frame is dropped after
excessive collision. This is IEEE Standard 802.3 half-duplex
flow control operation.
Restart
- It determines whether the MAC retransmits frames
after an excessive collision has occurred. If set, a frame is not
dropped after excessive collisions, but the backoff sequence is
restarted. This is a violation of IEEE Standard 802.3, but is
useful in non-dropping half-duplex flow control operation.
Power Control
The Configured column allows for changing the power savings
mode parameters per port.
Disabled
: All power savings mechanisms disabled.
ActiPHY
: Link down power savings enabled.
PerfectReach
: Link up power savings enabled.
Enabled
: Both link up and link down power savings enabled.
Refresh
Click this button to refresh the information for WAN port.
After finishing all the settings here, please click
OK
to activate them.
3.1.3 3G Backup
This page is used to setup 3G backup function. If you enable 3G backup, make sure your
WAN connection type is not in 3G mode. When the WAN connection is broken, router will
try to keep the connection with 3G mode. After WAN connection is recovered, router will
disconnect the 3G connection automatically.
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Vigor2130 Series User’s Guide
41
SIM PIN code
Type PIN code of the SIM card that will be used to access
Internet.
Modem Initial String1/2
Such value is used to initialize USB modem. Please use the
default value. If you have any question, please contact to your
ISP.
APN Name
APN means Access Point Name which is provided and
required by some ISPs.
Modem Dial String
Such value is used to dial through USB mode. Please use the
default value. If you have any question, please contact to your
ISP.
PPP Username
Type the PPP username (optional).
PPP Password
Type the PPP password (optional).
Clone MAC Address
It is available when the box of Enable is checked. Click
Clone
MAC Address
. The result will be displayed in the field of
MAC Address.
3.2 LAN
Local Area Network (LAN) is a group of subnets regulated and ruled by router. The design of
network structure is related to what type of public IP addresses coming from your ISP.
Basics of LAN
The most generic function of Vigor router is NAT. It creates a private subnet of your own. As
mentioned previously, the router will talk to other public hosts on the Internet by using public
IP address and talking to local hosts by using its private IP address. What NAT does is to
translate the packets from public IP address to private IP address to forward the right packets
to the right host and vice versa. Besides, Vigor router has a built-in DHCP server that assigns
private IP address to each local host. See the following diagram for a briefly understanding.
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Vigor2130 Series User’s Guide
42
In some special case, you may have a public IP subnet from your ISP such as
220.135.240.0/24. This means that you can set up a public subnet or call second subnet that
each host is equipped with a public IP address. As a part of the public subnet, the Vigor router
will serve for IP routing to help hosts in the public subnet to communicate with other public
hosts or servers outside. Therefore, the router should be set as the gateway for public hosts.
What is Routing Information Protocol (RIP)
Vigor router will exchange routing information with neighboring routers using the RIP to
accomplish IP routing. This allows users to change the information of the router such as IP
address and the routers will automatically inform for each other.
What are Virtual LANs and Rate Control

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