Best practice for running 6to4 relays (was Re: 6to4 borkeness)

[Michael Taht]

Lets try that last email again with a lighter finger on the send key and
pgp off....

I am painfully aware that there appear to be no 6to4 gateways on either
of the networks I tried in australia (one traceroute to 192.88.99.1
terminated in the us - 266 ms away, another ended up in .ch - 355ms away)

Worse, http://broker.aarnet.net.au/tunnelreq.html doesn't want to hand
out /48s and they don't answer their email.... what the heck do they
mean by "Prefix publishing interface"?

1) I am curious as to what best practice would be to correctly setup a
6to4 router for a small ISP, announcing the route is valid just for ips
within my network - and not incurring the entire weight of australia
trying to route through my gateway? (significant bandwidth charges here)

There seems to be lots of documentation on the web on how to use 6to4 as
a client, but zero on how to setup a router. (or why not to try) Is it
even possible to do right? Conf files to setup on cisco gear or quagga,
explanations of how to avoid asymmetric routes, PMTU problems, etc
highly desired.

2) is broker.aarnet.net.au just borked or am I?