Cisco 4to6 NAT-PT not working

[Vieron82]

Hi!

I have a computer on my home lan, which is connects to the router via a pair of powerline adapters.
Unfortunately, the powerline adapters blocking all traffic except IPv4.
I want to use IPv6 sites on that computer, so i tried to setup a 4to6 NAT-PT on my Cisco 871 router, but the IPv6 connection still not works.
The other computers works fine with stateless auto-configuration.
What am i doing wrong?
Here is the IPv6 configuration of the router:

no ip cef
!
ipv6 unicast-routing
no ipv6 cef
!
interface Tunnel0
description Hurricane Electric IPv6 Tunnel Broker
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ipv6 address 2001:470:1F0A:1E53::2/64
ipv6 enable
ipv6 traffic-filter ipv6-acl in
tunnel source Dialer1
tunnel destination 216.66.80.30
tunnel mode ipv6ip
!
interface Vlan1
ip address 192.168.2.30 255.255.255.224
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1412
ipv6 address 2001:470:1F0B:1E53::1/64
ipv6 enable
ipv6 nat
!
ipv6 route ::/0 Tunnel0
ipv6 nat v4v6 source 192.168.2.26 2001:470:1F0B:1E53::26
ipv6 nat prefix 2001::/96 v4-mapped what_to_ipv4
!
ipv6 access-list what_to_ipv4
permit ipv6 any 2001::/96
!
ipv6 access-list ipv6_acl
permit tcp any any eq ftp-data
permit tcp any any eq ftp
permit tcp any any eq 22
permit tcp any any eq 443
permit tcp any any gt 1023
permit udp any any gt 1023
sequence 100 permit icmp any any
!

 

[rasbellsouth]

You may want to check this config example:

http://docwiki.cisco.com/wiki/IPv6_with_Tunnel_Broker_Configuration_Example