mac-filtering is not working

[Manuel Schmitz]

Hello,

I am desperately trying to establish mac-filtering on my debian-router.

- All default chains are empty, policy set to "ACCEPT".
- I execute 

  iptables -A FORWARD -m mac --mac-source $MY_MAC -j ACCEPT
  
  and then set the FORWARD-Policy to "DROP". Now I expect the chain to 
  drop all packages exept these coming from $MY_MAC. Am I right? 
- It does not work. It drops ALL traffic. So why?

--Manuel


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