On Mon, Aug 15, 2005 at 11:28:10PM +0300, vladone wrote: > Hi! > I try to block some computers to acces my gateway based on MAC > address. > I use this ipfw rule: > ipfw add 100 deny mac any xx:yy:aa:bb:cc:dd in via $private_interface > With this i can block XP computers but not work with Win98. I dont > understand what is happened!
As the ipfw manpage states, you can filter on layer-2 header fields (of which the MAC address is one) _where available_. It could be that Win98 doesn't correctly list the MAC address in the packets. You could try using tcpdump to check the packets. Roland -- R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain text. public key: http://www.xs4all.nl/~rsmith/pubkey.txt
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