PIX 6.x does not have the Layer 2 MAC ACL feature. So, there is no straight-forward way of doing this.
The only think that may work (but it is a bit of a kludge) would be to enable aaa authentication/authorization for through traffic, and then use a mac-list to exclude everyone but the MAC you want to deny. Actually, you can just use a specific deny followed by a permit for everyone else. That would require the specific MAC to be authenticated/authorized. ...just a thought, but I'm not sure I would recommend it. It would depend on the amount of traffic the PIX was passing.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...