[Sis-csi] IPv6?

Fri Jun 8 11:45:52 EDT 2007

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?                  

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                                                         
                                                                     Subject 
                                RE: [Sis-csi] IPv6?                          

At this point it appears likely that CEV and MS will support IPv6 from
the outset. An answer is expected in the summer timeframe.

-----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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>
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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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