[Sis-csi] IPv6?

[David Carek]

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)