NetComm NB8WVPN, Руководство пользователя

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NB8WVPN User Guide YML8WVPN
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Field Means
Enable UPnP Universal plug and play (UPnP) allows traffic to pass through the NB8WVPN for applications using the UPnP
protocol. This feature requires one active WAN connection. In addition, the client connecting to the NB8WVPN
should support this feature.
UPnP also supports NAT Traversal which can automatically solve many NAT-related communications
problems. UPnP enables applications to assign dynamic port mappings to the NB8WVPN and delete them
when connections are complete.
A typical example is the MSN Messenger application that runs on Windows. Instead of manually setting up the
port mappings UPnP enables MSN Messenger to make the request to the NB8WVPN which will setup these
ports dynamically. When MSN Messenger is closed the port openings will be removed from the NB8WVPN’s
configuration.
Configure the second IP address and subnet mask for LAN interface. It is possible to configure a second
IP address to access the NB8WVPN on. Once this box is checked you are able to enter the IP address and
subnet mask
.
Disable DHCP Server Disables the DHCP server. Only to be done if Static IP address is set up.
Enable DHCP Server
Default: Enabled.
Start IP Address Default: 192.168.1.2. The first IP address that will be issued to the first DHCP client connecting to the
NB8WVPN using Ethernet cable or wirelessly.
End IP Address Default: 192.168.1.254. The last IP address in the DHCP pool to be issued to DHCP clients connecting to the
NB8WVPN.
Lease Time
Default: 24 hours. The time an IP address is assigned to a client before behind renewed .
Enable IGMP Snooping IGMP specifies how a host can register a router in order to receive specific multicast traffic. IGMP Snooping
allows the NB8WVPN to capture IGMP frames. When your NB8WVPN hears an IGMP report from a host for
a given multicast group it adds the host’s port number for that group. When the NB8WVPN hears an IGMP
Leave, it removes the host’s port from the table entry.
Without IGMP snooping, multicast traffic is treated in the same manner as broadcast traffic-thatis,itis
forwarded to all ports. With IGMP snooping, multicast traffic of a group is only forwarded to ports that have
members of that group. IGMP Snooping generates no additional network traffic, allowing you to significantly
reduce multicast traffic passing through your NB8WVPN.
Save
Save the settings.
Save / Reboot Save and reboot with the settings applied.