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Limiting Transmissions of Broadcast/Multicast Packets

The Ethernet Broadcast/Multicast Limiter option, available in both AU and SU, enables to limit the

number of broadcast and/or multicast packets that can be transmitted per second, in order to prevent

the potential flooding of the wireless media by certain ARP attacks or similar events.

In SUs, the limiter is placed after the Ethernet Broadcast Filters. For this reason, the limiter will receive

only the packets that pass through these filters. In case that the Ethernet filters of the SU are disabled,

the limiter will be applied to all relevant packets received from the Ethernet port.

When the Ethernet Broadcast/Multicast Limiter is enabled and the specified limit is reached, the unit

will send a trap. The trap will be sent periodically, informing the user how many packets were

discarded in the last period. The interval between two consecutive traps is configurable in the range

from 1 to 60 minutes.

Remote Blocking of the Ethernet Port

The Ethernet Port Control option allows enabling or disabling non-management traffic to/from the

Ethernet port of an SU. The system administrator can use this feature for blocking communication

to/from end-users upon non-payment or similar events. When the port is disabled, all current data

sessions will be terminated. The unit is still manageable via the Ethernet port even if it is disabled for

data traffic.

Increased Number of Management Stations

The Set/Change Network Management IP Address Ranges feature enables defining, updating or

deleting IP address ranges from which the unit can be managed if the Network Management Filtering

option is enabled. This is in addition to the previous options in the Network Management menu that

enable defining, updating and deleting discrete IP addresses. IP address ranges can be defined using

either start and end addresses or start address and subnet mask.

Adding the SU's Name to the MAC Address Database

The Sys Name of the SU is sent to the AU during the association process and is available through

both Telnet (Association Info) and SNMP.

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