Filter
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Advanced Configuration and Management Guide
Table C.8: Filters (Continued)
AppleTalk zone filters X 21
AppleTalk network filters X 22
BGP address filters X 22
BGP AS-path filters X 23
BGP community filters X 24
IP/RIP redistribution filters X 26
OSPF redistribution filters X 27
BGP redistribution filters X 27
Layer 4 Filters 28
TCP/UDP forwarding filters (same as TCP/UDP access policies) X X 9
Filter Type Supported on... See page...
Routing
Switch
Switch
Layer 2 Filters
Layer 2 filters control a device’s receipt of packets based on MAC address information. The routing switches and
switch provide the following types of Layer 2 filters:
• MAC address filters
• Address-lock filters
MAC Filters
MAC filters forward or drop incoming packets based on the following information:
• Source MAC address
• Destination MAC address
• Encapsulation type and EtherType (optional)
A packet whose Layer 2 information matches the filter is either permitted (forwarded) or denied (dropped). You
define a MAC filter on the global level, then apply it to an interface. MAC filters apply only to incoming packets.
Action
MAC filters forward (permit) or drop (deny) packets.
Scope
You configure MAC filters globally, then apply them to individual ports. The filters do not take effect until applied
to specific ports.
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