ADTRAN Total Access 1240 - Manual (Page 57)

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 EthF
ilt = PPP
o
E
Vlan 112 EthF
ilt = An
y
Vlan 124 EthF
ilt = 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.
Ingr
ess
E
g
ress
Ingr
ess
E
g
ress
SHDSL ports 1-24
Po
rt
1
Po
rt
2
P
o
rt
23
P
o
rt
24