Netcomm N300 Bedienungsanleitung PDF herunterladen (Seite 49)

YML9WMAXXN ADSL2+ Wireless N300 Modem Router with VoIP User Guide

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NetComm Gateway

Series - ADSL2+ Wireless N300 Modem Router with VoIP

8.2 LAN

Use this screen to congure LAN interface settings.

NOTE: NAT is enabled so Enable UPnP is shown above while DHCP Server Relay is hidden. Consult the eld descriptions below for more details.

Field Means

LAN IP Address Default: 192.168.1.1. The LAN IP address of your NB9WMAXXn.

LAN Subnet Mask Default: 255.255.255.0. The subnet mask of your NB9WMAXXn. A subnet mask is used to determine what subnet an IP address

belongs to. For more information on subnetting see http://www.ralphb.net/IPSubnet/.

Enable UPnP Universal plug and play (UPnP) allows trafc to pass through the NB9WMAXXn for applications using the UPnP protocol. This

feature requires one active WAN connection. In addition, the client connecting to the NB9WMAXXn 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 NB9WMAXXn 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 NB9WMAXXn which will setup these ports dynamically. When MSN

Messenger is closed the port openings will be removed from the NB9WMAXXn’s conguration.

Congure the second IP address and subnet mask for LAN interface. It is possible to congure the second IP address to access

the NB9WMAXXn 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 rst IP address that will be issued to the rst DHCP client connecting to the NB9WMAXXn 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 NB9WMAXXn.

Lease Time Default: 24 hours. The time an IP address is assigned to a client before being renewed.

Enable IGMP Snooping IGMP species how a host can register a router in order to receive specic multicast trafc. IGMP Snooping allows the

NB9WMAXXn to capture IGMP frames. When your NB9WMAXXn hears an IGMP report from a host for a given multicast group

it adds the host’s port number for that group. When the NB9WMAXXn hears an IGMP Leave, it removes the host’s port from the

table entry.

Without IGMP snooping, multicast trafc is treated in the same manner as broadcast trafc - that is, it is forwarded to all ports.

With IGMP snooping, multicast trafc of a group is only forwarded to ports that have members of that group. IGMP Snooping

generates no additional network trafc, allowing you to signicantly reduce multicast trafc passing through your NB9WMAXXn.

Save Save the settings.

Save / Reboot Save and reboot with the settings applied.

NOTE: The Save button saves new settings to allow continued conguration while the Save/Reboot button not only saves new settings but also reboots the device to apply

the new conguration (i.e. all new settings).

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