ipfw2 question

[David]

I keep getting messages in my /var/log/security logfile that look like
this:

May 11 19:41:03 zim /kernel: ipfw: 65534 Deny MAC in via rl1
May 11 19:42:54 zim /kernel: ipfw: 65534 Deny MAC in via rl1

I'm not sure what this means, though, and I don't see anything in the man
pages about it.

Can anyone tell me what this means or how to disable MAC filtering but
keep the rest of ipfw2 working?

David