Cisco ESW 500 Administration Manual page 167

Configuring Device Security
Defining Access Control
STEP 3
ESW 500 Series Switches Administration Guide
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Wildcard Mask
Wildcards are used to mask all or part of a source MAC Address. Wild
card masks specify which octets are used and which octets are ignored.
A wild card mask of ff:ff:ff:ff:ff:ff indicates that no octet is important. A
wildcard of 00:00:00:00:00:00 indicates that all the octets are important.
For example, if the source MAC address 09:00:07:A9:B2:EB and the
wildcard mask is 00:ff:00:ff:00:ff, the 1st, 3rd, and 5th octets of the MAC
address are checked, while the 2nd, 4th, and 6th octets are ignored.
•
Destination MAC Address:
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MAC Address
packets are addressed to the ACE.
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Wildcard Mask
mask. Wildcards are used to mask all or part of a destination MAC
Address. Wild card masks specify which octets are used and which
octets are ignored. A wild card mask of ff:ff:ff:ff:ff:ff indicates that no
octet is important. A wildcard of 00:00:00:00:00:00 indicates that all the
octets are important. For example, if the destination IP address
09:00:07:A9:B2:EB and the wildcard mask is 00:ff:00:ff:00:ff, the 1st, 3rd,
and 5th octets of the MAC address are checked, while the 2nd, 4th, and
6th octets are ignored.
•
VLAN ID — Matches the packet's VLAN ID to the ACE. The possible field values
are 1 to 4095.
•
Inner VLAN — Matches the ACE to the inner VLAN ID of a double tagged
packet.
•
802. 1 p — Displays the packet tag value.
•
802.1p Mask — Displays the wildcard bits to be applied to the CoS.
•
Ethertype — Displays the Ethernet type of the packet.
•
Action — Indicates the ACL forwarding action. The possible field values are:
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Permit —
Forwards packets which meet the ACL criteria.
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Deny —
Drops packets which meet the ACL criteria.
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Shutdown —
port to which the packet was addressed.
Define the relevant fields,
— Indicates the source MAC Address wild card mask.
— Matches the destination MAC address to which
— Indicates the destination MAC Address wild card
Drops packet that meet the ACL criteria, and disables the
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