[BBLISA] anybody doing IPv6 for real operations?/possible presentation topic

[Dean Anderson]

whois 66.92.73.217
[Querying whois.arin.net]
[whois.arin.net]

OrgName:    Speakeasy, Inc. 
OrgID:      SPEK
Address:    1201 Western Ave
City:       Seattle
StateProv:  WA
PostalCode: 98101
Country:    US

Speakeasy has not deployed IPV6.

whois 2002:425c:49d9:1::1
[Querying whois.6bone.net]
[whois.6bone.net: Temporary failure in name resolution]
[Unable to connect to remote host]

Heh.  Well, that happens to everyone someday, I suppose. 

However, the 2002::/16 is for 6to4 deployments.  Not really IPV6, but
point-to-point nat to IPV4.  It "looks" like you are doing IPV6, but you
aren't /really/ doing IPV6.  There is no real routing being done except
from your host IPV6 interface to the tunnel interface on the host. At
the remote end, its just more bogus removing/adding the IPV6 frame
around the packet.  Its nothing more than NAT.  It lets people think 
they are running IPV6.

It reminds me of calculus: Remember that pathological case of continuity
where the function is continuous everywhere except at x=5, where the
function has a value (say 10), but approaching the function from the
left (5-) or the right (5+) does not approach 10, but some other value
(say 3).  Being discontinous, one can't integrate or differentiate the
function (at least not directly).  Topology has a similar example of
isolated points and disconnected topological spaces (which also make
those spaces undifferentiable), which is probably more appropo to IPV6
networking.  Sometimes its hard to spot the pathology.

		--Dean

On 18 Mar 2010, Daniel Hagerty wrote:

> Bill Bogstad <bogstad at pobox.com> writes:
> 
> > I confess that I haven't followed every nuance of this discussion, but
> > my impression is that nobody on this list is actually using IPv6
> > operationally for either internal or external networking.   If I'm
> > wrong about
> > that, I would love to hear specific implementation details/issues.
> > Preferably as a presentation for BBLISA, but I'll take what I can get.
> 
>     I guess that depends on your definitions, mostly scale.  If home,
> which is me, my wife, and a few wireless guests counts, then yes, I
> am:
> 
> $ w -n
>  1:54PM  up 10 days,  1:44, 1 user, load averages: 0.00, 0.03, 0.06
> USER     TTY     FROM                        LOGIN@  IDLE WHAT
> hag      ttyp0   2002:425c:49d9:8:216:cbff: Wed10PM 15:43 -bash 
> 
> which is an internal connection that I'm typing over right now, and
> note things like:
> 
> $ host www.linnaean.org
> www.linnaean.org has address 66.92.73.217
> www.linnaean.org has IPv6 address 2002:425c:49d9:1::1
> www.linnaean.org mail is handled by 10 mx-1.linnaean.org.
> 
> $ host mx-1.linnaean.org
> mx-1.linnaean.org has address 66.92.73.217
> mx-1.linnaean.org has IPv6 address 2002:425c:49d9:1::1
> mx-1.linnaean.org mail is handled by 10 mx-1.linnaean.org.
> 
> for the external stuff.  I actually get a signifigant amount of mail
> over IPv6, as several high volume mailing lists I read are v6
> capable.  Grep says about 30% in the last week or so.
> 
> _______________________________________________
> bblisa mailing list
> bblisa at bblisa.org
> http://www.bblisa.org/mailman/listinfo/bblisa
> 
> 

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