Table 3.9 Same MAC address on different VLANs and PBVLANs
In addition, every unit has a table of static MAC addresses (up to 8 addresses) for connected
devices, so that each device can have a VLAN number and a QoS priority level (this is a table of
special MAC addresses). If a packet is received from the Access port and the MAC address of
the packet sender is inside this table, a header with the necessary VLAN number and the QoS
priority will be assigned to this packet before transmitting it to the Trunk port. Otherwise, a default
VLAN number and QoS priority will be assigned to the packet.
A group of DSL ports (WAN1–WAN4) (SHDSL interface) means that Ethernet data can be
mapped onto specified timeslots (64kbit/s) on the SHDSL interface by using the internal switch.
In this case, this port always serves as a Trunk port. Any data received from Access/Mixed
ports are first transformed into Ethernet packets with VLAN format and then transmitted over the
SHDSL interface.
A group of E1 ports (WAN1–WAN4) (E1 interface) means that Ethernet data can be mapped
onto specified timeslots (64kbit/s) on the E1 interface by using the internal switch. In this case,
this port always serves as a Trunk port.
A virtual management port (INT) (Virtual management port) is an internal device management
program. The IP-address of this device is the logical address of the management program. For
example, to open a session for managing a remote device, the IP-address of this device should
be specified in the Telnet program. At the physical layer, the MAC address of the device is also
the management program address, which is inside the Ethernet frame.
Note: As a rule the data of the management port have the highest priority (example, QoS = 7).
3.2.2.6 MAC Filter
The system supports MAC filtering feature. If enabled the device will filter MAC addresses and
acts according to the defined MAC filtering rule. If disabled, the system will store and forward
correct Ethernet packets according to the configuration of Ethernet subsystem.
White List
White List contains a list of MAC addresses. The fact of MAC address presence in the list means
that the data exchange between the modem device and the node with selected MAC is allowed.
The data exchange between the modem device and the node with non listed MAC address is
prohibited.
Interfaces
The White List is applicable per LAN Interface. Therefore the number of lists is equal to the
number of physical Ethernet ports of the device.
Note: White List can't be enabled on WAN interfaces.
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