Re: IPv6 Home Use to stimulate deployment over IPv4-NAT

[Carlos Friacas <cfriacas@fccn.pt>]

On Tue, 18 Feb 2003, JORDI PALET MARTINEZ wrote:

> Hi Carlos,

Hello.


> As you can imagine, I did a tunnel only because the native IPv6 was not working for me. I learn, as a first lesson, to see if there
> is a RA in the network before I do my own one !

Perhaps your problem was there were several on the link. :-)
Miguel from University of Evora noticed that while he was trying to bring
the Isabel connection up.


> I even asked, and they told me that ONLY v4 was available in that network.

Sorry. :-(
Probably you were misinformed. There was a note on the reg.desk


> In fact I show to some people from the organization that curiously, v4 was not working also. I got an address assigned by DHCP, but
> no way to use web or pop3/smtp. Some other people experienced the same problem, so I guess it wasn't my own computer.

This was tested ok by our local network folks, that installed the AP, and
nobody else complained. Strange at least.


> So I tried my own tunnel, and it worked. If you filter port 41, that's still fine for me (unless you mean proto-41).

typo... s/port/proto :-)


> Obviously the round-trip was not good, but it was due to the network configuration itself, as I was doing a ping to my tunnel end.
> If I ping with v4, the round trip must be almost the same !

If you were not able to do simple web browsing over v4, you were very
lucky to be able to do v6 over v4. So this proofs v4 was working, no?
That LAN is becoming a "case-study"... :-)


> Anyway, I tried to show that even when IPv4 is not working, I can use IPv6, and that's was a real situation ... I prefer to have a
> slower connectivity that _nothing_.

If v4 was not working you couldnt have found your other tunnel end
magically... :-)


> Clearly we must improve this, but this is what we are working now, here
> in this group.
>
> I prefer to show the people the true, not just telling them everything
> is wonderful and we have nothing to do. I'm sure other people
> is in the same side.

The truth about that particular meeting is that nobody showed up with
*any* traffic graphic, even a graphic populated with data generated by
test-traffic not users. That was really a deception for me.

Another deception was not seing the ISABEL aplication working. I had
spent some hours in the previous days troubleshooting ipv6 bgp4+ with
people from PTInovacao in order to setup the connectivity to euro6ix, and
at the end it was not possible to bring the application up due to a
congestion in Madrid. It was a real frustration and it stopped us to show
something really running on top of v6. :-(


Regards.


> Regards,
> Jordi
>
> ----- Original Message -----
> From: "Carlos Friacas" <cfriacas@fccn.pt>
> To: "JORDI PALET MARTINEZ" <jordi.palet@consulintel.es>
> Cc: <v6ops@ops.ietf.org>
> Sent: Tuesday, February 18, 2003 6:44 PM
> Subject: Re: IPv6 Home Use to stimulate deployment over IPv4-NAT
>
>
> >
> > Hello.
> >
> > Last week you showed at a conference a v6 tunnel over v4, when you had
> > native v6.
> >
> > The roundtrip times you showed on a traceroute left some people in the
> > audience yellow-faced...
> >
> > One thing to have in mind in the future *for you*: check if you have
> > native v6 available.
> >
> > One thing to have in mind *for me* in the future: filter port 41 on a dual
> > stack interface, to avoid the kind of "stunts" people sometimes do... :-)
> >
> >
> > Regards,
> >
> > ./Carlos
> >                                                           "Networking is fun!"
> > --------------         [http://www.ip6.fccn.pt]            http://www.fccn.pt
> > <cfriacas@fccn.pt>, CMF8-RIPE, CF596-ARIN, Wide Area Network Workgroup
> > F.C.C.N. - Fundacao para a Computacao Cientifica Nacional  fax: +351 218472167
> >
>
> *********************************
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>
>
>



./Carlos
                                                          "Networking is fun!"
--------------         [http://www.ip6.fccn.pt]            http://www.fccn.pt
<cfriacas@fccn.pt>, CMF8-RIPE, CF596-ARIN, Wide Area Network Workgroup
F.C.C.N. - Fundacao para a Computacao Cientifica Nacional  fax: +351 218472167