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Re: IPv6 Home Use to stimulate deployment over IPv4-NAT
On Tue, 18 Feb 2003, JORDI PALET MARTINEZ wrote:
> Carlos,
Hello.
> As I explained there, I can use v4 with some protocols and destinations, may be it was a combination of firewall/filter+routing
> problem, not sure, but for sure I was able to bring up the tunnel and then I started to work almost normally (but with v6), I even
> gained access to our streaming server, under test.
No firewall there, the routing (v4 and v6) was ok.
As i said, this network is transforming itself on a "case-study". :-)
It was very unfortunate that you were not able to show anything from your
streaming server.
Perhaps the 2Mbps between FCCN and Euro6IX PoP in Lisbon was not enough.
:-(
> It was also pity for me not being able to show the Isabel application,
> but as you know the people that setup it, had only a couple
> of days to try to sort out all the problems, and it was impossible to
> setup it w/o disturbing the running sessions, connecting 25
> sites across the world (they worked perfectly). Next time !
Circuit dimensioning problem (bugs in planning). I was told that Isabel is
really a bandwidth hog. Sometimes just having a good intention and
throwing it around is not enough *sigh* :-(
I have some questions about Euro6IX too. Do you have the time to answer
them Jordi?
> Regards,
> Jordi
Regards.
> ----- 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 7:39 PM
> Subject: Re: IPv6 Home Use to stimulate deployment over IPv4-NAT
>
>
> > 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
> > > >
> > >
> > > *********************************
> > > Madrid 2003 Global IPv6 Summit
> > > 12-14 May 2003 - Pre-register at:
> > > http://www.ipv6-es.com
> > > Interested in participating or sponsoring ?
> > > Contact us at ipv6@consulintel.es
> > >
> > >
> > >
> >
> >
> >
> > ./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
> >
>
> *********************************
> Madrid 2003 Global IPv6 Summit
> 12-14 May 2003 - Pre-register at:
> http://www.ipv6-es.com
> Interested in participating or sponsoring ?
> Contact us at ipv6@consulintel.es
>
>
>
./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