Frequently Asked Questions (FAQ)

Other FAQ sections

Can I move my tunnel/subnet to another PoP? Can I request multiple subnets over my tunnel? Can I use SixXS tunnels to hide my IPv4 IP? Can a heartbeat tunnel be converted to a static or AYIYA tunnel or vice versa? Do you provide 6to4 connectivity? Do you provide BGP peering? Heartbeat or AYIYA tunnel doesn't work How do I configure my machine to setup the IPv6 in IPv4 tunnel to the SixXS PoP? How do I give connectivity to other hosts on my subnet? How is my endpoint connectivity tested? I have a firewall, what ports/protocols are used? IPv6 Transition Mechanism / Tunneling Comparison Is my connectivity filtered? / Mandatory IPv6 Filtering on IPv6 Is there a command line/non web tool for SixXS? Is there a traffic/data limit? Is there support for dynamic IPv4 endpoints? Multicast Support My IPv6 is random and changes often. Why? My static endpoint is broken and I don't want to lose credits My tunnel doesn't work My tunnel goes down after some idletime. My tunnelendpoint also is a NAT/Connection Tracker My tunnel/subnet doesn't work at once My tunnel/subnet stays in deleted state PoP's that are marked down Transit / I have some other tunnels and now it doesn't work Tunnel endpoint didn't ping What is the MTU of a tunnel? Where can I get native IPv6 / Which ISP's provide IPv6? Where can I get native IPv6 transit? Which PoP should I choose? Why are some PoP's not available for tunnels

Where can I get native IPv6 / Which ISP's provide IPv6?

The following is a list of providers who can provide native IPv6 to their customers Note that this list only comprises Access Providers and not hosting providers. Most hosting providers can provide IPv6 already simply because it is native IPv6. The list contains both consumer and business ISP's or in effect any ISP who provides access to an end-site.

Japanese IPv6 Access Providers are listed on IPv6 Style: IPv6 Services in Japan .
For Tunneled connectivity check the Tunnel Brokers list.
For Transit providers check the IPv6 Transit list.

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TLD	Provider	Prefix	Link	Technology	Notes
	Airwire	2a02:278::/32	Fiber and fixed wireless	Ethernet	Ask helpdesk for details, will become by-default soon
	Andrews & Arnold	2001:8b0::/32	DSL	PPPv6
	ASDASD srl	2a02:f8::/32	Ethernet, DSL	Ethernet, SONET, RFC1483, PPPoE, PPPoA
	BIT	2001:7b8::/32	DSL and others	Ethernet
	Bogons	2001:4b10::/32	DSL	PPPv6	Provides Multicast IPv4 and IPv6
	Breedband Delft	2a02:928::/32	Ethernet	Ethernet
	Citynet	2001:19e0::/32	DS1,DS3,Ethernet,SONET	Ethernet
	Claranet	2001:a88::/32	DSL, dialup and leased	PPPv6	Provides Multicast IPv4 and IPv6
	Cyberlink	2001:8a8::/32	DSL and others	Ethernet
	Danske Telecom A/S	2a02:460::/32	Fiber and Fixed Wireless	Ethernet	Available upon request. IPv6 access via WiMAX is pending. IPv6 transit available
	Dial Telecom	2001:4de8::/32	Fiber and Fixed Wireless	Ethernet
	E4A s.r.l	2001:4c00::/32	FTTH, Fixed Wireless	Ethernet
	Easynet	2001:6f8::/32	DSL and others	PPPv6 or Ethernet
	Entanet	2001:4d48::/32	Ethernet	PPPv6	Also provides IPv6 transit
	Epik Networks	2607:f3d8::/32	Ethernet, TDM (DS1,T3,etc), SONET, DSL	Ethernet	Contact sales@epiknetworks.com for more details and getting connected
	FDN	2001:910:1000::/38	DSL	PPPv6
	GCI.com	2610:100::/32	Ethernet, TDM, SONET, Fiber, others	Ethernet	Contact bcs@gci.com
	Goscomb	2a01:348::/32	DSL, E1, Ethernet	PPPv6 or Ethernet
	Hotze.com GmbH	2a02:5d8::/32	DSL, Ethernet	Ethernet
	IDKOM Networks GmbH		DSL and others	PPPv6 or Ethernet
	IDNet	2a02:390::/32	DSL, Ethernet	PPPv6 or Ethernet
	Impulse Internet Service	2001:19f8::/32	Ethernet, DSL, T1/T3	Ethernet	support@impulse.net for more information
	Individual Network Berlin e.V.	2001:bf0:c000::/35	xDSL, VPN, Ethernet	PPPv6 or Ethernet	IN-Berlin
	Init Seven AG	2001:1620::/32	Leased line and others	Ethernet	Ethernet Service, Optical Service
	Internode	2001:44b8::/32	DSL, SDH, Sonet, Ethernet	Ethernet	ADSL FAQ
	Interoute	2001:1478::/32	Ethernet	Ethernet
	Interway	2001:8e0::/32	DSL and others	PPPv6 or Ethernet
	ipHouse	2001:4980::/32	PPPv6	DSL and others	IPv6 DSL, Contact support@iphouse.com to request it.
	ITGate	2001:1418::/32	DSL and others	Ethernet
	Jaguar Network	2a01:240::/32	DSL and others	PPPv6 or Ethernet
	KGT new media	2a02:7a0::/32	xDSL, Ethernet	PPPv6, Ethernet
	Lava.net	2001:1888::/32	DSL, Frame-Relay	Ethernet	On request
	Linxtelecom	2001:ad0::/32	Ethernet	Ethernet	Moosiriiul, also available for IPT, DIA and Server Housing
	Nebula	2001:1bc8::/32	DSL	Ethernet	NebulaZone Advanced
	Nerim	2001:7a8::/32	Cable	PPPv6 or Ethernet
	NetAssist LLC	2a01:d0::/32	ETTH	Ethernet	Corporate Customers, Home Users
	Network Design GmbH (NDNET/Usterweb)	2a00:10c0::/32	xDSL	PPPv6, Ethernet
	nexellent ag	2001:4168::/32	Leased line and others	Ethernet
	Panservice	2001:40d0::/32	DSL and dialup	PPPv6	IPv6 Connection Information / Go6.it
	Proxad / Free SAS	2a01:e00::/26	DSL	6to4rd	IPv6 Press Release
	RelAix Networks GmbH	2a00:fe0::/32	DSL, Fiber, Wireless P2P	Ethernet
	rh-tec	2001:1a50::/32	DSL	PPPv6	Free of charge, including 3 GB traffic. T-DSL required
	Saitis	2001:788::/32	Ethernet, DSL	Ethernet
	Space.Net	2001:608::/32	DSL and others	PPPv6 or Ethernet
	Spectrum Networks LLC		DSL	Ethernet	Contact sales@spectrumnet.us for more information
	SpeedPartner GmbH	2a01:198::/32	DSL and others	PPPv6 or Ethernet
	TAL.DE Klaus Internet Service GmbH	2a01:170::/32	DSL	Ethernet	In Beta
	Threshold Communications	2604:5000::/32	DSL, T1, DS3, Sonet, Microwave/Wireless	Ethernet
	Titan Networks	2001:4b88::/32	DSL	PPPv6	Titan-DSL
	Transaria/Cutthroat Communication	2001:1940::/32	DSL,T1,Ethernet,DS3,OC3	Ethernet
	Wanadoo France		DSL	PPPv6
	WorldxChange Communications (Xnet)	2001:e20::/32	xDSL, Ethernet, FTTH	DHCPv6 over xDSL	On Request (provide a /56 delegated prefix)
	X-COM Partners, MAN Stargard	2001:67c:1b0::/48	Fiber (PON/AON), Ethernet	Ethernet
	XS4all	2001:888::/32	DSL	PPPv6	IPv6 @ XS4all

The "Technology" column either contains:

• Ethernet: Ethernet, or in the case of DSL actually bridged from ATM
• PPPv6: existing or additional PPP session which carries IPv6

Getting Listed

When you are an ISP providing IPv6 connectivity to endsites and you are not yet listed above, then please contact the SixXS Staff, providing them with the above information.

Would it not be bad for SixXS if Native IPv6 was available everywhere?

Why would it? One of the targets of SixXS is to stop providing tunnels to endusers because everybody can get native IPv6 connectivity. Thus if there are enough providers that people don't need tunnels any more, our mission is successful.