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MAC ACL
S
23-21
mask (MAC ACL)
This command defines a mask for MAC ACLs. This mask defines the
fields to check in the packet header. Use the no form to remove a mask.
Syntax
[
no
]
mask
[
pktformat
]
{
any
|
host
|
source-bitmask
} {
any
|
host
|
destination-bitmask
}
[
vid
[
vid-bitmask
]] [
ethertype
[
ethertype-bitmask
]]
• pktformat – Check the packet format field. (If this keyword must
be used in the mask, the packet format must be specified in ACL rule
to match.)
• any – Any address will be matched.
• host – The address must be for a single node.
• source-bitmask – Source address of rule must match this bitmask.
• destination-bitmask – Destination address of rule must match this
bitmask.
• vid – Check the VLAN ID field.
• vid-bitmask – VLAN ID of rule must match this bitmask.
• ethertype – Check the Ethernet type field.
• ethertype-bitmask – Ethernet type of rule must match this bitmask.
Default Setting
None
Command Mode
MAC Mask
Command Usage
• Up to seven masks can be assigned to an ingress or egress ACL.
• Packets crossing a port are checked against all the rules in the ACL
until a match is found. The order in which these packets are checked
is determined by the mask, and not the order in which the ACL rules
were entered.
• First create the required ACLs and inbound or outbound masks before
mapping an ACL to an interface.