User's Manual

Configuring the Gateway
50
SMCD3GNV Wireless Cable Modem Gateway User Manual
Table 8. Wireless Menu
Option Description
Private Wireless Network
Name
MAC Address
Security Mode
Shows the name MAC address, and security setting, if any, for each private wireless network
detected. An EDIT button is provided to change these settings.
Private Wireless Basic Setting
Mode Choices are:
• 802.11 b/g = use this setting if you have a combination of IEEE 802.11b and IEEE 802.11g
devices on your network.
• 802.11n = use this setting if you have only IEEE 802.11n devices on your network or want
to limit your network to IEEE 802.11n devices.
• 802.11 b/g/n = use this setting if you have a combination of IEEE 802.11b, IEEE 802.11g,
and IEEE 802.11n devices on your network. (default)
Channel Selection Select how the Gateway will select a channel for communicating over the wireless network.
Choices are:
• Automatic = the Gateway selects the channel automatically. (default)
• Manual = the Gateway uses the channel specified in the Channel option.
Channel If the Channel Selection option is Manual, specify the appropriate channel from the list
provided to correspond with your network settings. Choices are 1, 6, and 11. The default
setting is 6, which refers to radio frequency ranges within the 2.4 GHz range. You can change
this setting if necessary; however, all devices in your wireless network must use the same
channel to work properly.
SAVE BASIC SETTING button Click this button to save your changes to the private wireless basic settings.
Private Wireless Advanced Setting
BG Protection Mode This mode is a protection mechanism that prevents collisions among 802.11b/g modes.
Choices are:
• Auto = BG protection mode goes on or off automatically as needed.
• Always-On = BG protection mode is always on.
• Always-Off = BG protection mode is always off. (default)
IGMP Snooping Enables or disables the Gateway from forwarding multicast traffic intelligently.
• Enable = Gateway listens to IGMP membership reports, queries, and leave messages to
identify the Gateway ports that are members of multicast groups. Multicast traffic will only
be forwarded to ports identified as members of the specific multicast group or groups.
• Disable = Gateway does not analyze all IGMP packets. (default)
Operation Mode Lets you select between Mixed Mode and Green Field.
• Mixed Mode = provides backward compatibility with IEEE 802.11n/a/g/b devices. (default)
• Green Field = used for pure network of 802.11n access points and clients, taking full
advantage of the high-throughput capabilities of the 11n multiple-input multiple-output
(MIMO) architecture.