Re: [BEHAVE] Where is the definition of IPv6 only hostforNAT64/DNS64

[<[e-mail]>]

 
Dear Dan, all,

See inline

Cheers,
Med


-----Message d'origine-----
De : [e-mail] [mailto:[e-mail]] De la part de Dan Wing
Envoyé : vendredi 17 juillet 2009 20:39
À : 'Hui Deng'
Cc : [e-mail]; 'Dave Thaler'
Objet : Re: [BEHAVE] Where is the definition of IPv6 only hostforNAT64/DNS64


> >
> > Most, if not all, of the mobile providers are anticipating
> IPv6-only handsets
> > on their LTE/"4G" networks.  Some companies, some
> universities, and some
> > wireline service providers, in an effort to reduce the
> operational complexity
> > of the end hosts and their network, want to run a
> single-stack network with
> > IPv6.  Those handsets and those hosts would still need to
> contact servers on
> > the IPv4 Internet.
> ==> China Mobile is leading IPv6 transition work item in 3GPP, acting 
> as a rapporteur.
> I personally deeply involve in this work, but until today, I haven't 
> heard about IPv6 only handset requirement proposed.

Dual-stack handset, running on the mobile operator's network, means the mobile operator:

  * operates two networks (IPv4 and IPv6).  For both IP address
    families you need routing tables, ACLs, DHCP, and training
  * operates a stateful NAT44 for the subscribers to access 
    the IPv4 Internet

Med: This can be true in some configurationss. But, other solutions may be envisaged to offer both IPv4 and IPv6 connectivty services to end-user with ***IPv6-only*** network and ***stateless*** IPv4-IPv6 interworking. See http://tools.ietf.org/html/draft-boucadair-behave-ipv6-portrange-01#section-6.6.1. A ds-lite compliant solution can also be envisaged http://tools.ietf.org/html/draft-boucadair-dslite-interco-v4v6-01. 


IPv6-only handset means the mobile operator:

  * operates one network (IPv6)
  * operates a stateful NAT64 for the subscribers to access 
    the IPv4 Internet