[Sis-csi] IPv6?
Ivancic, William D. (GRC-RCN0)
william.d.ivancic at nasa.gov
Mon Jun 18 16:11:15 EDT 2007
If you are designing a network, use networking protocols. If you are
designing for point-to-point communications, you don't necessarily need
a networking protocols as you don't need that flexibility.
Also, IPv6 is more than increased address space. Much more. To much
more than can be covered in a email.
Will
******************************
William D. Ivancic
Phone 216-433-3494
Fax 216-433-8705
Lab 216-433-2620
Mobile 440-503-4892
http://roland.grc.nasa.gov/~ivancic
> -----Original Message-----
> From: sis-csi-bounces at mailman.ccsds.org
> [mailto:sis-csi-bounces at mailman.ccsds.org] On Behalf Of
> Chris.Taylor at esa.int
> Sent: Friday, June 08, 2007 11:46 AM
> Cc: sis-csi-bounces at mailman.ccsds.org; Donald P Olsen; CCSDS
> Cislunar Space Internetworking WG
> Subject: RE: [Sis-csi] IPv6?
>
> Just to stir things up a bit, has it really been decided that
> we will use IP on our future links. From the discussion it
> seems like a done deal but our ESA studies and opinion is
> that IP doesn't bring us much other than a bit more address
> space that we probably don't need anyway. Rather than
> discuss the merits of IPv4 and 6 it may be more productive to
> critically examine the application of IP to see how it may be
> employed or not. I should say that I have no particular issue
> with the use of IP its just that I think the problem is much
> wider and by concentrating on v4/v6 there is a danger of
> missing the real problems - IP doesn't work on links that
> have disjoint connectivity ........
>
> //ct
>
>
>
>
> "Schneider, Larry"
>
> <larry.schneider at n
>
> asa.gov>
> To
> Sent by: Donald P Olsen
>
> sis-csi-bounces at ma
> <Donald.P.Olsen at aero.org>
> ilman.ccsds.org
> cc
>
> sis-csi-bounces at mailman.ccsds.org,
> CCSDS Cislunar Space
> Internetworking
> 07/06/2007 20:02 WG
> <sis-csi at mailman.ccsds.org>
>
> Subject
> RE: [Sis-csi] IPv6?
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> CEV has a requirement to support IPv4 with a transition to
> IPv6 for lunar. By going early they avoid the cost to support
> both solutions and an awkward program transition.
>
> Mobile IP is included and standardized in IPv6 whereas in
> IPv4 it is supported only under proprietary solutions.
>
> IPv6 eliminates private addresses.
>
> I'm not suggesting it can't work either way, I'm only
> indicating how it currently from my vantage.
>
>
>
> From: Donald P Olsen [mailto:Donald.P.Olsen at aero.org]
> Sent: Thursday, June 07, 2007 10:53 AM
> To: Schneider, Larry
> Cc: David Carek; CCSDS Cislunar Space Internetworking WG;
> sis-csi-bounces at mailman.ccsds.org
> Subject: RE: [Sis-csi] IPv6?
>
>
> Greetings
>
> Moorse(sp) law is a great mitigator to address space cost in space.
>
> Don
>
>
>
> "Schneider, Larry"
>
> <larry.schneider at nasa.g
>
> ov>
>
> Sent by:
> To
> sis-csi-bounces at mailman "David Carek"
> <David.A.Carek at nasa.gov>,
> .ccsds.org "CCSDS Cislunar Space
> Internetworking WG"
> <sis-csi at mailman.ccsds.org>
>
>
> cc
> 06/07/2007 08:18 AM
>
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> Subject
> RE: [Sis-csi] IPv6?
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> At this point it appears likely that CEV and MS will support
> IPv6 from the outset. An answer is expected in the summer timeframe.
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>
>
> -----Original Message-----
> From: sis-csi-bounces at mailman.ccsds.org
> [mailto:sis-csi-bounces at mailman.ccsds.org] On Behalf Of David Carek
> Sent: Thursday, June 07, 2007 10:12 AM
> To: CCSDS Cislunar Space Internetworking WG
> Subject: Re: [Sis-csi] IPv6?
>
>
> I personally don't think address space is a driver in
> determining NASA's space protocol needs. Space assets are
> very expensive and I doubt there will be a significant number
> off addresses required. NASA already has a significant
> allocation of v4 address it can use. Either version will
> work from an address space point of view.
>
> Edward Greenberg wrote:
> > Marc, Maybe this is a dumb question but if the all the
> Earth systems
> > are transferring to IPv6 is there anyone that is the broker for
> > trading
> > IPv6 address space for IPv4 address space. If so then by
> 2010 there
> > should be lots of IPv4 addresses available. If NASA
> transforms itself
>
> > to IPv6 then what happens to all of NASA's IPv4 address? If JSC
> > transfers over to IPv6 would there be enough IPv4 addresses to
> > accommodate NASA's space address space needs indefinitely?
> >
> >
> >
> > At 10:06 AM -0400 6/7/07, Marc Blanchet wrote:
> >> Hi,
> >> as you might have noticed, ARIN board recently advised
> the community
>
> >> that IPv4 addresses are going away and push the community
> to consider
> >> IPv6 asap... The concensus currently is that IPv4
> addresses will be
> >> gone by 2010 from the IANA pool and then x months later
> from the RIR
> >> pool. Given that space projects are "long term" projects, at the
> >> time some IP address space will be needed for space in, say 2012,
> >> then v4 addresses won't be available. only IPv6 addresses will be
> available.
> >> given the multi-international scope of space projects, I can't
> >> imagine having IPv4 NATs between spacecrafts that forces
> VoIP traffic
>
> >> to go through earth just because of traversing NAT... ouach....
> >> therefore, I think this group should really consider:
> >> - ipv6 as the primary IP protocol
> >> - ipv6 as possible only IP protocol
> >> - designing a contingency plan if v4 is still considered.
> >>
> >> comments?
> >>
> >> references:
> >> - ARIN board resolution on IPv4/Ipv6:
> >> http://www.arin.net/announcements/20070521.html
> >> - exhaustion of IPv4 address space timeline:
> >> http://www.potaroo.net/tools/ipv4/index.html
> >>
> >> Marc.
> >>
> >>
> >> _______________________________________________
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>
> --
> David A. Carek, P.E.
> NASA Glenn Research Center
> 216-433-8396 (Office)
> 216-978-8063 (Mobile)
>
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