Egress ACL Limitations

Egress ACLs have some additional limitations. The following limitations apply to egress ACLs only:

Egress ACLs support IP Protocol/Destination, IP Address Source/Destination, L4 Source/Destination port, IP DSCP, IP ToS, and IP precedence match conditions only.

MAC ACLs are not supported in the egress direction.

Egress ACLs only support Permit/Deny Action. Logging, mirroring and redirect action are not supported.

Only one Egress ACL can be applied on an interface. The ACL can have multiple rules to classify flows and apply permit/deny action.

If the Egress ACLs have "over-lapping" rules, then there can be undesired behavior. This limitation is only applicable if the conflicting ACLs are within the same unit. The restriction is explained below:

ACL 1: permit tcp destination port 3000; deny all

ACL 2: drop ip source 10.1.1.1; permit all

ACL 1 is applied on port 1 and ACL 2 is applied on port 2. Due to this limitation, all the packets egressing port 2 with Source IP 10.1.1.1 and tcp source port 3000 will be permitted even though they should be dropped.

MAC ACLs

MAC ACLs are Layer 2 ACLs. You can configure the rules to inspect the following fields of a packet:

Source MAC address

Source MAC mask

Destination MAC address

Destination MAC mask

VLAN ID

Class of Service (CoS) (802.1p)

Ethertype

L2 ACLs can apply to one or more interfaces.

Multiple access lists can be applied to a single interface; sequence number determines the order of execution.

You can assign packets to queues using the assign queue option.

Device Security

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6200 SERIES specifications

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