QoS and bandwidth throttling in IPSEC networks

[Jyri Kaljundi <jk () stallion ee>]

More of encryption questions than firewalls, but this does get mixed quite
often nowadays:

How are the Quality of Service and bandwidth throttling issues handled in
LAN to LAN encryption products? 

How are these issues generally handled in IPSEC packets, like how can
ISP's and public networks offer QoS for encrypted IPSEC packets? Is it
possible to tag the packets (like voice, low quality, e-mail etc) and is
there and RFC on this?

Jüri Kaljundi
jk () stallion ee                     Mustamäe tee 55, Tallinn 10621, Estonia
AS Stallion                        Tel: +372-656 7720
http://www.stallion.ee/            Fax: +372-656 7727