When an IP Interface is attached to a 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 packet types.
If a filter for a specific packet type (IPv4) is not overridden, the SAP specified filter is applied to the packet (if defined).
The following tables list ACL lookup behavior with and without ingress override filter attached to an IES interface in a R-VPLS service.
| Type of traffic | SAP ingress IPv4 filter | SAP egress IPv4 filter | Ingress override IPv4 filter |
|---|---|---|---|
Destination MAC != IES IP interface MAC |
Yes |
Yes |
No |
Destination MAC = IES IP interface MAC and Destination IP on same subnet as IES interface |
No |
No |
Yes |
Destination MAC = IES IP interface MAC and destination IP not on same subnet as IES IP interface and route to destination IP does not exist |
No |
No |
No |
Destination MAC = IES IP interface MAC and destination IP not on same subnet as IES IP interface and route to destination IP exists |
No |
No |
Yes |
Destination MAC = IES IP interface MAC and IP TTL = 1 |
No |
No |
No |
Destination MAC = IES IP interface MAC and IPv4 packet with Options |
No |
No |
No |
Destination MAC = IES IP interface MAC and IPv4 Multicast packet |
No |
No |
No |
| Type of traffic | SAP ingress IPv4 filter | SAP egress IPv4 filter |
|---|---|---|
Destination MAC != IES IP interface MAC |
Yes |
Yes |
Destination MAC = IES IP interface MAC and Destination IP on same subnet as IES IP interface |
Yes |
No |
Destination MAC = IES IP interface MAC and destination IP not on same subnet as IES IP interface and route to destination IP does not exist |
No |
No |
Destination MAC = IES IP interface MAC and destination IP not on same subnet as IES IP interface and route to destination IP exists |
Yes |
No |
Destination MAC = IES IP interface MAC and IP TTL = 1 |
No |
No |
Destination MAC = IES IP interface MAC and IPv4 packet with Options |
No |
No |
Destination MAC = IES IP interface MAC and IPv4 Multicast packet |
No |
No |