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I've got a sixxs subnet with aiccu on my debian vps, and want to use the complete subnet at my vps. Currently only the 2001:4dd0:f000:000f::2 is usable. My config:

(ip a)

3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN 
    link/sit 0.0.0.0 brd 0.0.0.0
6: sixxs: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1280 qdisc noqueue state UNKNOWN 
    link/sit 109.111.111.11 peer 70.11.11.111
    inet6 2001:4dd0:f000:000f::2/64 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::0006:e000/64 scope link 
       valid_lft forever preferred_lft forever

eth0 and lo are not important, I think.

How can I use the complete /64 on my vps?

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up vote 1 down vote accepted

You will have to add the IPv6 addresses that you want to use to the interface. For example like this:

ip -6 addr add 2001:4dd0:f000:000f::3/64 dev sixxs
share|improve this answer
    
I am getting "icmp_seq=1 Destination unreachable: No route" for the new added address. – wb7 Jan 6 '14 at 17:00
    
Can you show your interface configuration after you add the address? – Sander Steffann Jan 6 '14 at 21:37
    
3: sit0: <NOARP> mtu 1480 qdisc noop state DOWN link/sit 0.0.0.0 brd 0.0.0.0 6: sixxs: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1280 qdisc noqueue state UNKNOWN link/sit 109.111.111.11 peer 70.11.11.111 inet6 2001:4dd0:f000:000f::3/64 scope global valid_lft forever preferred_lft forever inet6 2001:4dd0:f000:000f::2/64 scope global valid_lft forever preferred_lft forever inet6 fe80::0006:e000/64 scope link valid_lft forever preferred_lft forever – wb7 Jan 7 '14 at 12:48
    
It might be that the point-to-point link addresses are filtered on the SixXS side. You should also have a routed /64 subnet. Try using the addresses from that one instead of using the addresses of the tunnel itself. – Sander Steffann Jan 7 '14 at 14:57
    
It was really a sixxs issue. I've switched to tunnelbroker.net and all works fine. – wb7 Jan 9 '14 at 16:29

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