Michel, I have Monowall configured as follows:

WAN page:
Static
IPv6 mode 'Tunnel'
IPv6 adress: 2a02:968:1000:3::2 /64 (given by tunnelbroker)
IPv6 tunnel endpoint: 212.72.229.25 (v4 address of brooker, given by
brooker)

On the LAN page:
IPv6 mode : Static
IPv6 adress: 2a02:968:1003:1::1 /64
Send advertisemends: ticked.

The diagnostics ping/traceroute should give you positive results.

EgbertJan

> -----Oorspronkelijk bericht-----
> Van: Steve Bertrand [mailto:steve at ibctech dot ca] 
> Verzonden: dinsdag 14 april 2009 22:54
> Aan: Egbert Jan van den Bussche
> CC: 'Michel Servaes'; m0n0wall at lists dot m0n0 dot ch
> Onderwerp: Re: [m0n0wall] how do we check, that ipv6 is 
> actually working (OT again)
> 
> 
> Egbert Jan van den Bussche wrote:
> > Steve, I don't think there is such a thing as IPv6 NAT. I have a 
> > Monowall 1.3b16 running so I could perhaps help in that area.
> 
> I just see that the web server, on the far side of the tunnel /64 is:
> 
> 2001:470:1f15:158c:d7d:bd6:5ff3:6988
> 
> This would lead me to believe that Michel is trying to use 
> the same /64 on two separate interfaces (tun & LAN). Without 
> knowing which IPv6 address he is actually appearing as 
> outside of the tunnel, I can't think of how this would work :)
> 
> Steve
>