Hurricane Electric's IPv6 Tunnel Broker Forums

Tunnelbroker.net Specific Topics => Questions & Answers => Topic started by: user3636 on February 26, 2022, 01:55:17 AM

Title: required bits for a FritzBox 6in4 tunnel
Post by: user3636 on February 26, 2022, 01:55:17 AM
Hello community,

I am trying to set a '6in4 tunnel' on my FritzBox router.
I am now trying to figure out, which bits of information need to go in which fields.
In the setup dialog I am being asked for the followings bits.

IPv4 address of the tunnel endpoint
IPv6 address of the tunnel endpoint
Local IPv6 address
IPv6 prefix


And from the 'IPv6 Tunnel Endpoints' page I have the following bits.

IPv6 Tunnel Endpoints
Server IPv4 Address: xxx.xxx.xxx.xxx
Server IPv6 Address:
Client IPv4 Address: xxx.xxx.xxx.xxx
Client IPv6 Address:


I already managed to figure out the bits for the IPv4 fields.
However I don't know where to find bits for the following fields for local IPv6 address and IPv6 Prefix.

Thx for the help, user3636
Title: Re: required bits for a FritzBox 6in4 tunnel
Post by: cholzhauer on February 27, 2022, 06:52:59 AM
You match up the data you have from HE to the fields below.

Tunnel end points are given to you by HE
local ipv6 address is the client /64 given to you by HE
prefix is /64 (unless you signed up for a /48)