Hello Jeroen, I still have a question about ticket ID SIXXS #997086 I still don't understand how to get IPv6 traffic routed from my LAN interface of my Cisco router into the tunnel and back to my LAN. I have the tunnel connected with a /64 (see configuration below). Now I want to route the IPv6 traffic from my tunnel into my LAN. What IPv6 network do I have to configure on my LAN interface of my Cisco Router? Don't I need a extra network for that? Can you please explain what I have to do, to get this working. The original ticket question was: I have setup my Cisco router for IPv6. The tunnel to SIXXS (PoP Name nlhaa01) is working fine. I have connectivity to other IPv6 routers and websites. 1 gw-165.haa-01.nl.sixxs.net (2001:1AF8:FE00:A4::1) 8 msec 8 msec 8 msec 2 2001:1AF8:1:F006:218:74FF:FE46:3200 8 msec 8 msec 8 msec 3 be25.crs.evo.leaseweb.net (2001:1AF8::19) 8 msec 8 msec 8 msec 4 XSR03.Asd001A.surf.net (2001:7F8:1::A500:1103:1) 8 msec 12 msec 8 msec 5 AE2.500.JNR01.Asd001A.surf.net (2001:610:E08:76::78) 8 msec 12 msec 8 msec 6 V1105.SW14.Amsterdam1.surf.net (2001:610:F01:8092::94) 8 msec 12 msec 12 msec This connectivity is from the console of the Cisco router. I want to connect my linux server to the ethernet (fa 1/0) interface of the router. How do I have to configure this interface? If I configure het same subnet I get a error message: % Prefix 2001:1AF8:FE00:A4::25/64 overlaps with another prefix Do you have a configuration example how to set this up? My tunnel configuration of the cisco router: interface Tunnel0 description Tunnel interface to SIXXS for IPv6 no ip address load-interval 30 ipv6 address 2001:1AF8:FE00:A4::2/64 ipv6 enable ipv6 mtu 1280 no ipv6 redirects ipv6 cef tunnel source FastEthernet1/0 tunnel destination 94.75.219.73 tunnel mode ipv6ip tunnel path-mtu-discovery The configuration of the fastethernet interface: interface FastEthernet1/0 description internal ethernet interface ip address 192.168.1.25 255.255.255.0 ipv6 address <what do I have to configure here?> duplex auto speed auto With Kind regards Marco

Hi Jeroen, What is the IPv6 adress space of the /48 subnet I get on the tunnel?

By requesting a subnet: FAQ: How do I give connectivity to other hosts on my subnet?

The state of this ticket has been changed to user