i mean all those teredo, isatap, 6to4, 4to6, and other dslite-alike things.
both for simplicity of management(adding in default protocols list - would help too. newbies not remember each protocol nuber, usually) and of course, security.
p.s. maybe its just stupid question/suggestion and i just doing “firewalling wrong”, but im not smartest person on earth, obviously, so excuse me in that case.