[LARTC] vpn control

[Rick Marshall]

we have an external 2Mbit dsl connection and running on it are several
gre vpn tunnels

so far i've given priority to the vpn traffic (using htb)

can i now put rules in for the tunnels to control traffic within each
tunnel (that's where our video conferencing etc runs)? or can i only
control the real interface (eth1 in our setup)? if not can i somehow see
the packets inside the vpn packets and then control them?

thanks

rick