User manual

Bridging Parameters
BreezeCONFIG for BreezeACCESS VL and BreezeACCES 4900 User Manual
65
 DHCP Broadcast Override: From the dropdown list, select whether to Enable
or Disable the override mechanism for DHCP broadcasts. If enabled, DHCP
messages are broadcast, even if the Filter Options parameter is set to filter
broadcast messages.
 PPPoE Broadcast Override: From the dropdown list, select whether to
Enable or Disable the override mechanism for broadcasting PPPoE messages.
If enabled, PPPoE messages are broadcast, even if the Filter Options
parameter is set to filter broadcast messages.
 ARP Broadcast Override: From the dropdown list, select whether to Enable
or Disable the override mechanism for broadcasting ARP messages. If
enabled, ARP messages are broadcast, even if the Filter Options parameter is
set to filter broadcast messages.
2.7.1.2 Ethernet Broadcast/Multicast Limiter
The Ethernet Broadcast/Multicast Limiter parameters, available in both AU and
SU, enable 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
medium by certain ARP attacks.
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. If the
Ethernet filters of the SU are disabled, the limiter will be applied to all relevant
packets received.
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 till the
number of broadcast/multicast packets will be less than the maximum. The trap
will inform the user how many packets were discarded in the last period.
The Ethernet Broadcast/Multicast Limiter parameters include:
 Limiter Option: The Limiter Option defines the limiter’s functionality. The
available options are:
 Disable
 Broadcasts
 Multicasts No Broadcasts
 All Multicasts