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Page 171 / 241 Scroll up to view Page 166 - 170
Vigor2130 Series User’s Guide
163
4.6.3 IGMP Snooping
IGMP snooping means multicast traffic will be forwarded to ports that have members of that
group. If you disable IGMP snooping, the system will make multicast traffic treated in the
same manner as broadcast traffic.
Snooping Enabled
Check the box to enable this function.
Unregistered IPMC…
Check the box to enable unregistered IPMC traffic flooding
Fast Leave
Check the box to Fast Leave on the LAN port.
4.6.4 IGMP Status
This page display current IGMP status.
V1~3 Reports Receive
Display the number of Received V1 – V3 Reports.
V2 Leave Receive
Display the number of Received V2 Leave.
Groups
Display current
IGMP groups. Maximum number of group
for each VLAN can be set is 128.
Port Members
Display the LAN ports in this group.
Refresh
Click this button to refresh the page immediately.
Clear
Click this button to clear the settings on this page.
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4.6.5 UPnP Configuration
The
UPnP
(Universal Plug and Play) protocol is supported to bring to network connected
devices the ease of installation and configuration which is already available for directly
connected PC peripherals with the existing Windows 'Plug and Play' system. For NAT routers,
the major feature of UPnP on the router is “NAT Traversal”. This enables applications inside
the firewall to automatically open the ports that they need to pass through a router. It is more
reliable than requiring a router to work out by itself which ports need to be opened. Further,
the user does not have to manually set up port mappings or a DMZ.
UPnP is available on
Windows XP
and the router provide the associated support for MSN Messenger to allow full
use of the voice, video and messaging features.
Enable UPnP
Enable UPnP function. You have to type the download and
upload speed.
Download Speed
Enter the maximum sustained WAN download speed in
kilobits/second. Such information can be requested by
UPnP clients.
Upload Speed
Enter the maximum sustained WAN upload speed in
kilobits/second. Such information can be requested by
UPnP clients.
After setting
Enable UPnP
setting, an icon of
IP Broadband Connection on Router
on
Windows XP/Network Connections will appear. The connection status and control status will
be able to be activated. The NAT Traversal of UPnP enables the multimedia features of your
applications to operate. This has to manually set up port mappings or use other similar
methods. The screenshots below show examples of this facility.
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The UPnP facility on the router enables UPnP aware applications such as MSN Messenger to
discover what are behind a NAT router. The application will also learn the external IP address
and configure port mappings on the router. Subsequently, such a facility forwards packets from
the external ports of the router to the internal ports used by the application.
The reminder as regards concern about Firewall and UPnP
Can't work with Firewall Software
Enabling firewall applications on your PC may cause the UPnP function not working
properly. This is because these applications will block the accessing ability of some network
ports.
Security Considerations
Activating the UPnP function on your network may incur some security threats. You should
consider carefully these risks before activating the UPnP function.
¾
Some Microsoft operating systems have found out the UPnP weaknesses and hence
you need to ensure that you have applied the latest service packs and patches.
¾
Non-privileged users can control some router functions, including removing and
adding port mappings.
The UPnP function dynamically adds port mappings on behalf of some UPnP-aware
applications. When the applications terminate abnormally, these mappings may not be
removed.
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4.6.6 Wake On LAN
A PC client on LAN can be woken up by the router it connects. When a user wants to wake up
a specified PC through the router, he/she must type correct MAC address of the specified PC
on this web page of
Wake On LAN
of this router.
In addition, such PC must have installed a network card supporting WOL function. By the
way, WOL function must be set as “Enable” on the BIOS setting.
Wake by
Two types provide for you to wake up the binded IP. If you
choose Wake by MAC Address, you have to type the correct
MAC address of the host in MAC Address boxes. If you choose
Wake by IP Address, you have to choose the correct IP address.
IP Address
The IP addresses that have been configured in
LAN>>Bind IP
to MAC
will be shown in this drop down list. Choose the IP
address from the drop down list that you want to wake up.
MAC Address
Type any one of the MAC address of the binded PCs.
Wake Up
Click this button to wake up the selected IP. See the following
figure. The result will be shown on the box.
4.7 VPN and Remote Access
A Virtual Private Network (VPN) is the extension of a private network that encompasses links
across shared or public networks like the Internet. In short, by VPN technology, you can send
data between two computers across a shared or public network in a manner that emulates the
properties of a point-to-point private link.
Below shows the menu items for VPN and Remote Access.
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4.7.1 Remote Access Control
Enable the necessary VPN service as you need. If you intend to run a VPN server inside your
LAN, you should enable IPSec VPN Pass-through and specify an IP address to allow VPN
tunnel pass through.
Enable IPSec VPN Service
If this checkbox is checked, the system firewall will allow
VPN (IPSec) remote access from WAN side to the router.
Enable IPSec VPN
Pass-through (Server inside
your LAN)
If this checkbox is checked, the system firewall will allow
VPN (IPSec) remote access from WAN side to a VPN
device on the LAN. Type the IP address of the VPN
device in the field next to the checkbox.
Enable PPTP VPN Service
If this checkbox is checked, the system firewall will allow
VPN (PPTP) remote access from WAN side to the router.
IP Address range for PPTP client
– Specify an IP
address pool for the local private network that will be
assigned to PPTP clients. Note the values given here
should not be the same as
IP address range for DHCP
Client
.
IP Address range for DHCP client
– Display the range
of IP address assigned by DHCP server.
Enable PPTP VPN
Pass-through (Server inside
your LAN)
If this checkbox is checked, the system firewall will pass
VPN (PPTP) remote access from WAN side to a VPN
server in the LAN. Type the IP address of the VPN server
in the field next to the checkbox.

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