Subj : test-ipv6.com
To   : Bj”rn Felten
From : Michiel van der Vlist
Date : Fri May 13 2011 17:39:17

Hello Bj”rn,

On Friday May 13 2011 15:15, you wrote to me:

 MvdV>> The ayiya hartbeat mechanism is supposed to keep it open

 BF>    Don't know what that ayiya is, I use "industry standard" aiccu

Ayiya is the tunnel protocol, aiccu is the name of the utility to configure tunnels.

http://en.wikipedia.org/AYIYA
http://en.wikipedia.org/AICCU

 BF> and it has worked perfectly well since day one. Aiccu is also what
 BF> Ubuntu uses BTW.

For static tunnels you do need need to keep aiccu running after the tunnel is set up. But a statis tunnel can not run behaind a NAT, unless the NAt can forward protocol 41 to the machine running the tunnel end point.

An ayiya tunnel can run behind a NAT, but the price for that is that it needs a heartbeat to keep the NAT open. aiccu is supposed to take care of that. But in my case it does not...

 MvdV>> When I ask for help in the sixxs forum, Jeroen Massar told me

 BF>    Ah yes, Jeroen is a wee bit arrogant.

s/a wee bit/bloody/

 BF> But then again, he's runnung the best working IPv6 tunneling service
 BF> available, IMHO.

I do not know about "the best", but granted the SixXs team is doing a great job. Plus that we have too keep in mind that it is a volunteer organisation, so one can not expect them to provide 24/7 service.

 MvdV>> I installed the tunnel on my router, did some wizardry to
 MvdV>> advertise and route the subnet and that was that. No need to
 MvdV>> install tunnel drivers on the indivudual systems on the LAN,
 MvdV>> all ipv6 capanel systems on the LAN automaticaly.

 BF>    Sounds interesting. Except for the fact that it means (no?) that
 BF> you end up on a server in NL...?

One can choose the tunnel end point. Since Amsterdam is the closest, that was my preferred choice. They have servers all over the world. http://tunnelbroker.net/

 MvdV>> Plus that the he.net tunnel is faster.

 BF>    Betcha this is because you end up somewhere in NL even with sixxs?

Both my he.net tunnel end my sixxs tunnel end somewhere in NL. sixxs is 5 IPv4 hops away from me. (12 ms ping)

he.net is also 5 IPv4 hops away from me and ping is also 12 ms.

I think the difference is explained by the much greater overheid of AYIYA.

 BF> I don't know if it's possible to change end server "on the fly" but if
 BF> so, you could try to connect to the Swedish tunnel.

Changing the tunnel end point if a sixxs tunnel costs 15 ISK. Most likely it will involve a change of IPv6 addres, since the addresse come out of the pool of the organisation hosting the POP.

he.net tunnels can not be changed, but one can delete a tunnel and request a new one with a different end point. That costs nothing. You can have 5 free tunnels with he.net, but you can not have more than one tunnel at the same IPv4 address.

 BF> As you might know by now, Sweden is a wee bit beyond the rest of the
 BF> world in this aspect. The Swedish sixxs end server is sitting on a
 BF> 100GB connection -- that's one of the reasons TPB and Wikileaks prefer
 BF> this ISP (Port80)... :)

Bit.nl where my sixxs tunnel ends has their own two fibers to AMS-IX. Plus independent links to BN-IX in Brussels and DE-CDX in Frankfurt. I do not know what speeds, but it sounds good enough to not be a bottleneck for test-ipv6.com.

 MvdV>> I am happy with my he.net tunnel.

 BF>    Good for you!

Sine Hurricane Electric is a commercial organisation, there is of course the chance that some day they will start charging for the service. If/when that happens I will reconsider my position...


Cheers, Michiel

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