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Section 5, User Interface - Menu Descriptions
61179605L5-5B 5-17
EtherType Filtering
The EtherType Filtering option (see Figure 5-11) allows filtering of the ingress/egress traffic of
the subscriber ports based on the ethertype of IP or PPPoE. This option is applicable on a per
VC basis.
• Packets are filtered based on the following EtherTypes:
–IP
– PPPoE
–Any
• Packets that do not meet the provisioned EtherType are discarded.
Figure 5-11. EtherType Filtering Concept Diagram
Total Access 1240
Ethernet
Vlan 101 EthFilt = PPPoE
Vlan 112 EthFilt = Any
Vlan 124 EthFilt = IP
Either packet
type is
forwarded.
If the packet’s EtherType is
PPPoE, it is forwarded,
if not it is discarded.
This applies in both directions.
If the packet’s EtherType
is IP, it is forwarded,
if not, it is discarded.
This applies in both directions.
Ingress
Egress
Ingress
Egress
SHDSL ports 1-24
Port 1
Port 2
Port 23
Port 24