User`s manual

NVF-800S 4-Band VDSL IP DSLAM USER’S MANUAL Ver.A.3
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Ingress Filtering
Ingress filtering lets frames belonging to a specific VLAN to be forwarded if the port belongs to that VLAN.
IP DSLAM has two ingress filtering rule as follows:
Ingress Filtering Rule 1:Forward only packets with VID matching this port's configured VID
Ingress Filtering Rule 2:Drop Untagged Frame