When an IP Interface is attached to a VPLS or an I-VPLS service context, the VPLS SAP provisioned IP filter for ingress routed packets may be optionally overridden to provide special ingress filtering for routed packets. This allows different filtering for routed packets and non-routed packets. The filter override is defined on the IP interface bound to the VPLS service name. A separate override filter may be specified for IPv4 and IPv6 packet types.
If a filter for a specified packet type (IPv4 or IPv6) is not overridden, the SAP specified filter is applied to the packet (if defined).