[Planetlab-devel] IPv6 support for MyPLC

[Bound, Jim]

Folks,

Re IPv6 addreses is that the EUI MUST be gloablly unique on a link. It
is not assumed past the link.  Important for all to realize this ok.
Thus no matter what you do with the EUI do not assume within the IPv6
architecture that the EUI is unique beyond the link.  Also you cannot
use the same IPv6 prefix on different links that is not permitted.  This
is important to realize.

Until vservers on any incantation are valid network node entities
virtually just like any node on any IP network then there is no way to
cleanly use any form of auto management to configure them with IPv4 or
IPv6.   But if you want to in some way that is totally not clear from
this email discussion to assign IP addresses statically to vservers IPv6
provides lots more options and address space and the use of ports could
go away.

In closing eventually Intrustion Detetection will prevent the absurd and
very scary practices of us using ping sweeps across a firewall punching
holes via port 80 via HTTP and I was shocked when Rick said this was
done.  This is not the way to do network management either :--).   

I will stop here I have major problems with the linux vserver view and
architcture in the first place.  WOW.

But I am here now so any way I can help I will.

Good discussion,
/jim
 

> -----Original Message-----
> From: devel-bounces at planet-lab.org 
> [mailto:devel-bounces at planet-lab.org] On Behalf Of Scott Karlin
> Sent: Wednesday, November 08, 2006 9:16 AM
> To: devel at lists.planet-lab.org
> Subject: Re: [Planetlab-devel] IPv6 support for MyPLC
> 
> On Wed, Nov 08, 2006 at 08:53:52AM -0500, Marc E. Fiuczynski wrote:
> > Suppose one used an IEEE company id, is there any specific 
> reason why 
> > one couldn't just use addresses out of the VMware and Xen 
> company id ranges?
> 
> Because if someone didn't know we were doing this, they may 
> point a finger at VMWare or Xen leading to confusion.  On a 
> given box, I do think that they guarantee uniqueness.  If we 
> are running PlanetLab in a VMWare machine or Xen domain (not 
> cooperatively), there is a possibility of collision.  
> Finally, I think that it's not really fair to use an ID for a 
> company that still has product out there.  I'm not advocating 
> it, but a different solution is to look in the oui.txt file 
> from IEEE and find a defunct company that only made FDDI 
> cards (something non-Ethernet) and use their number.  I 
> actually think VMWare did something like this in its very 
> early days.  In any event, using someone else's ID is against 
> IEEE rules.
> 
> Scott
> 
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