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

[Felipe Grazziotin - SouthTech SuperDatacenter]

Kevin Day escreveu:

...
> It's pretty simple really:
>
> router bgp 19255
>  bgp router-id 192.88.99.1
>  network 192.88.99.0/24
>  neighbor 216.14.98.5 remote-as 19255
>  neighbor 216.14.98.5 update-source 216.14.98.26
>  neighbor 2001:4978:1:410::ffff remote-as 19255
>  no neighbor 2001:4978:1:410::ffff activate
> !
>  address-family ipv6
>  network 2002::/16
>  neighbor 2001:4978:1:410::ffff activate
>  exit-address-family
> !
>
> 216.14.98.5 is our core router's v4 address for this 
> link. 2001:4978:1:410::ffff is it's v6 address.
>
>
...

Config for BGP sounds quite acceptable, but I still don't get how would 
one configure the ip tunnel for this kind of setup.

Would that be something in the lines of:

ip tunnel add tun6to4 mode sit ttl 80 remote any local 192.88.99.1
ip link set dev tun6to4 up
ip -6 addr add 2002:????:????:1/16 dev tun6to4

(from a Linux-admin view, in this case).

And, after that tunnel is up, does the 6to4 gateway start to throw 
proto-41 packets into the internet for each 2002::/16 it is requested to 
access?

-- 
Felipe Grazziotin
25933*100