[ds6] ds6 now accessible from 6net

[Simone Piunno]

On Tuesday 01 July 2003 15:08, Dr. Peter Bieringer wrote:

> > just because this address was auto-generated doesn't mean it's bound
> > to the NIC.  Actually, both addresses (6bone and 6net) are statically
> > configured and would be used even if we replace the interface.
>
> If so, it "violates" the standard, because automatic generated ones
> should't be assigned manually:
> Solution: invert the universal/global bit...

From RFC2373:

   EUI-64 based Interface identifiers may have global
   scope when a global token is available (e.g., IEEE 48bit MAC) or may
   have local scope where a global token is not available (e.g., serial
   links, tunnel end-points, etc.).  It is required that the "u" bit
   (universal/local bit in IEEE EUI-64 terminology) be inverted when
   forming the interface identifier from the EUI-64.  The "u" bit is set
   to one (1) to indicate global scope, and it is set to zero (0) to
   indicate local scope.  The first three octets in binary of an EUI-64
   identifier are as follows:

       0       0 0       1 1       2
      |0       7 8       5 6       3|
      +----+----+----+----+----+----+
      |cccc|ccug|cccc|cccc|cccc|cccc|
      +----+----+----+----+----+----+

So you want me to reset the u bit therefore indicating our address is local 
scope?  It doesn't sound quite good because our token *is* global (e.g. IEEE 
48bit MAC) but ok, if you think this is required I've set the refresh time 
for AAAA records to 5 minutes and I'll switch tomorrow in the evening.

-- 
Simone Piunno,
Deep Space 6, IPv6 on Linux
http://www.deepspace6.net 
Founder member