I have an MPLS connection running through a pix (7.1.1) running in transparent mode but am unable to filter any of the MPLS traffic. I can ping and telnet through the pix but never see anything in my logs or connection table apart from the UDP/711 and BGP/179 traffic. Is there a way to have the pix filter MPLS-unicast traffic? I have 2 ACL's applied one that permits all ip/icmp and another to allow the MPLS-Unicast ethertype to pass. Any guidance would be greatly appreciated.