mac access-list extend Source-Mac-All-Zero
deny host 0000.0000.0000
permit any any
interface FastEthernet0/30
switchport access vlan 14
switchport mode access
mac access-group Source-Mac-All-Zero in
参考：
https://community.cisco.com/t5/switching/how-to-block-range-of-mac-addresses-in-cisco-switches-routers/td-p/4317895
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