Linksys SGE2000 Cisco Small Business SFE/SGE2xxx Series Managed Switches Admin - Page 108
Destination MAC Address, VLAN ID, Inner VLAN, Action, Apply, STEP 3
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Configuring Device Security Defining Access Control 4 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: - MAC Address - Matches the destination MAC address to which packets are addressed to the ACE. - Wildcard Mask - Indicates the destination MAC Address wildcard mask. Wildcards are used to mask all or part of a destination MAC Address. Wildcard masks specify which octets are used and which octets are ignored. A wildcard 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. • 802.1p - 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: - Permit - Forwards packets which meet the ACL criteria. - Deny - Drops packets which meet the ACL criteria. - Shutdown - Drops packet that meet the ACL criteria, and disables the port to which the packet was addressed. STEP 3 Define the relevant fields. STEP 4 Click Apply. The Rule settings are modified, and the device is updated. Cisco Small Business SFE/SGE Managed Switches Administration Guide 99