Researching transparent firewalls and there is a healthy list of features not supported natively (but can be allowed with ACLs). One feature that is not discussed at all is QOS. All the docs I can find simply say that QOS is not supported through a transparent firewall.
What does that mean exactly? If I'm using a transparent firewall between an MLS and a router, with all the QOS classification and marking happening on the MLS, does the Transparent Firewall re-mark something? or do they mean to say you just can't do classification/reclassification and marking on a transparent firewall?