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Old 12-20-2006, 09:05 AM   #1
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Registered: Aug 2003
Location: Belgium
Distribution: Ubuntu
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Lan subnet and mac addresses firewall


I have a ftp server running for my lan.
But I have some problems with the firewall:

I filter the connections using mac addresses, that's a secure way to do it imo.
This seems to work for people within my lan subnet but not for the people of another subnet.
Why can't I see their mac addresses? And what do I have to do to make it possible?

Old 12-20-2006, 10:18 AM   #2
Registered: Sep 2005
Location: New delhi
Distribution: RHEL 3.0/4.0
Posts: 777

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Why can't i see mac addresses of different subnet ?
Just because a router forwards it's own mac for cross subnet communications. And for all those packets you'll only be seeing a entry of your own ROUTER in your ARP cache.


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