List of IPv6 tunnel brokers

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This is a list of IPv6 tunnel brokers that conform to the principles of RFC 3053 which describes a system with which users can request creation of an IPv6 tunnel on a host called a point of presence (PoP) that provides IPv6 connectivity to the user's network.

Most of the time, 6in4 tunnelling protocol do not function most on the time if the IPv4 address of the host is behind a Carrier-grade NAT. In that case, the AYIYA protocol supported by the discontinued SixXS was providing a working alternative.

Name Cost Active Time PoPs Locations Subnet Tunnelling protocols Features Registration Configuration Language Prefix Server implementation
Start End 6in4 TSP AYIYA heartbeat OpenVPN WireGuard RDNS BGP Multicast Script Manual TSP TIC URL Up to 3 tunnels for free 2019 Active 2 Dusseldorf, Zurich, Norway /64 or free /44 to /48 RIPE BGP Yes No No No No No Yes Yes No Required No Yes No No No English 2a0e:b107::/32 Custom
ipv6onlyhosting* 120 CHF/year 2018 Active 2 Switzerland /48 No No No No No Yes Yes Yes No Required Yes Yes No No No English 2a0a:e5c1::/32 WireGuard+Django* 1.50€ one-time for ::/128, 5.50€ one-time for ::/80 2016 Active 3 Milan, Italy
New York, USA
Vienna, Austria
::/128 or /80 on request Yes No No No Yes No Yes No No Required[1] Yes Yes No No Yes English
AARNet 2003 [2] 05/04/2019 1 Australia /48 on request Yes Yes No No No No No No No Required Yes No No No No English 2001:388::/32 gogoSERVER
CITC 2010 [3] ? 1 Saudi Arabia /64 No Yes No No No No No No No Required[4] No No Yes No No English, Arabic 2001:67c:130::/48 ddtb[5]
Got-root 2018 2019 1 Strasbourg, France /80 or /64 on donation Yes No No No No No No No No Required Yes Yes No No Yes English 2a07:59c0::/32 Custom
Hurricane Electric[6] Up to 5 tunnels for free 2002[7] Active 37[8] Australia, Canada, Europe (9 countries), Hong Kong, Japan, Singapore, United States (11 states), South Africa /64 default
/48 on request
Yes No No No No No Yes Yes No Required[9] Yes Yes No No Yes[10] English 2001:470::/32 Unknown
IP4Market 2018 Active 1 Russia /48 Yes No No No No No No No No Required No Yes No No Yes Russian 2a03:e2c0::/32


IPv6Now 2008[11] ? 1 Australia /64 or /48 on request Yes Yes No No No No No No No Required No No Yes No No English 2406:a000::/32 gogoSERVER
NetAssist 2011[12] Active 1 Ukraine /48 Yes No No No No No Yes Yes No Required Yes Yes No No Yes[13] English, Russian 2a01:d0:8000::/33 Unknown
SixXS 2000[14] 2017 [15] 49[16] Australia, Brazil, Europe (20 countries), New Zealand, New Caledonia, Russia, United States (8 states), Vietnam /64 default
/48 on request
Yes No Yes Yes No No Yes No Yes Suspended[17] Yes Yes No Yes Yes English Various[18] sixxsd[19]

*Paid services

The columns in the table provide the following details:

Name The name of the organisation providing the tunnel broker, this generally maps directly to an Internet service provider.
PoPs Number of PoPs deployed
Locations Locations where the tunnel broker has a PoP where termination of a tunnel can occur.
Subnet What subnet allocation the tunnel broker provides next to the /127 or /64 for the tunnel.
Tunnelling protocols
Which tunnelling protocols are provided by the tunnel broker. This has impact on whether one can use a tunnel behind NAT or in cases where the IPv4 address of the user changes often. Check the relevant protocol descriptions for more details, or see this tunneling comparison.
6in4 6in4 tunnels IPv6 packets directly inside IPv4, also called 'proto-41' due to the protocol number (41) it uses.
TSP The Tunnel Setup Protocol. It uses a UDP-based tunnel, which is used for both tunnelling and configuration.
AYIYA AYIYA allows users behind a NAT and/or a dynamic address to maintain connectivity even when roaming between networks. It uses a UDP-based tunnel.
heartbeat[20] heartbeat is a side-protocol for signalling the current IP address of a user's 6in4 endpoint. This allows the use of a 6in4 tunnels where the user's endpoint is a dynamic IP address.
Features RDNS Whether the tunnel broker provides reverse DNS delegations for the address space they provide over the tunnel.
BGP Whether the tunnel broker accepts a BGP peering allowing one to announce one's own address space or see routing information.
Multicast Whether the tunnel broker provides IPv6 Multicast over a tunnel.
Registration If registration is optional or required. Registration requires the user provides real details (at minimum an email address, typically also name and address)
What methods are available for configuring tunnels and subnets provided by the tunnel broker
Script Indicates that the broker provides a script through their website that one can run on a computer for setting up the tunnel.
Manual That one can set up the tunnel manually if wanted
TSP Uses the Tunnel Setup Protocol (TSP) which requires the gogoclient and which can provide configuration details for TSP protocol tunnels.
TIC Uses the Tunnel Information and Control (TIC)[21] protocol as implemented by AICCU, AVM FRITZ!Box, Draytek, Motorola and others. This can provide configuration details for static, heartbeat and AYIYA tunnels.
URL URL indicates that changes to the tunnel parameters can be made on the website (e.g. enable/disable or change the endpoint)
Language Which languages are supported by the providers web interface and other communication channels.
Prefix Which IPv6 prefix(es) are used for the tunnel broker. If a /32 is indicated, generally only a portion is used for tunnels/subnets for the tunnel broker or the name of the tunnel broker service that is providing the address space.
Server implementation The Tunnel broker server software used by the tunnel broker.


  1. ^ "6project Policy". 6project.
  2. ^ "AARNet IPv6 Migration Broker experimental service". AARnet mailinglist. 12 November 2003. Retrieved 3 May 2016.
  3. ^ "Saudi Arabia IPv6 Task Force - 9th task force meeting". Saudi Arabia IPv6 Task Force. 10 October 2010. Retrieved 3 May 2016.
  4. ^ "IPv6 Tunnel Broker Registration". Saudi Arabia IPv6 Task Force. Retrieved 30 January 2016.
  5. ^ "CITC IPv6 Tunnel Broker - Saudi Arabia IPv6 Task Force". Archived from the original on 9 February 2015. Retrieved 14 December 2014.
  6. ^ "Hurricane Electric Free IPv6 Tunnel Broker". Retrieved 14 December 2014.
  7. ^ "Hurricane Electric Upgrades IPv6 Tunnel Broker". Hurricane Electric. Retrieved 3 May 2016.
  8. ^ "Tunnel Server Status". Hurricane Electric. Retrieved 19 May 2017.
  9. ^ " IPv6 Tunnel Broker Registration". Hurricane Electric. Retrieved 30 January 2016.
  10. ^ "Dyn-compliant Endpoint Updates". Hurricane Electric. Retrieved 18 December 2015.
  11. ^ "IPv6 Now!". IPv6 Now. 1 August 2008. Retrieved 3 May 2016.
  12. ^ "Netassist announces Tunnel Broker". NetAssist on Facebook. 5 September 2011. Retrieved 3 May 2016.
  13. ^ "NetAssist::IPv6 Tunnel Broker". Retrieved 14 December 2014.
  14. ^ "History :: SixXS - IPv6 Deployment & Tunnel Broker". SixXS. Retrieved 3 May 2016.
  15. ^ "Main :: SixXS". Retrieved 6 June 2017.
  16. ^ "SixXS - IPv6 Deployment & Tunnel Broker :: Points of Presence". Retrieved 14 December 2014.
  17. ^ "Signup for a -SIXXS handle". SixXS. Retrieved 30 January 2016.
  18. ^ "SixXS - IPv6 Deployment & Tunnel Broker :: Points of Presence - All Prefixes". Retrieved 14 December 2014.
  19. ^ "SixXS - IPv6 Deployment & Tunnel Broker :: Frequently Asked Questions (FAQ)". Retrieved 14 December 2014.
  20. ^ "draft-massar-v6ops-heartbeat-01 - SixXS Heartbeat Protocol". Retrieved 14 December 2014.
  21. ^ "SixXS - IPv6 Deployment & Tunnel Broker :: Tunnel Information and Control protocol (TIC)". Retrieved 14 December 2014.