How to block mac address in 2800 router

sir
how to block mac addresses in cisco 2800 router 

Hi,
To block mac addresses you can simply create Mac based ACLs which ranges between 
700 to 799
Example:
access-list 700 deny xxxx.xxxx.xxxx.xxxx
access-list 700 permit yyyy.yyyy.yyyy.yyyy
now you can apply it on interface:
int f0/0
access-group 700 in 
exit
Regards,
Rahul Chhabra
Network Engineer
Spooster IT Services

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