Subject: RE: PID --- a new option for Stateless Address Auto-Configuration

From: "CTO WEN Haibo" <[email-masked]>
Date: Thu, 8 Jun 2006 12:11:25 +0800

DHCP-PD is used for prefix delegation from a delegating router to a request router.
PID is used for help implement SAAC without upgrading CPE(or home gateway) and 
access node to be layer 3 devices.

> -----Original Message-----
> From: Lawrence Zou [mailto:[email-masked]]
> Sent: 2006年6月8日 10:27
> To: CTO WEN Haibo; 'IPv6 WG'
> Cc: 'Bob Hinden'; 'Brian Haberman'; 'Jari Arkko'
> Subject: RE: PID --- a new option for Stateless Address
> Auto-Configuration
> 
> 
> it seems that your approach will do some job that DHCP-PD is doing.
> 1)delegate different prefix to each subscriber
> 
> >-----Original Message-----
> >From: CTO WEN Haibo [mailto:[email-masked]] 
> >Sent: Wednesday, June 07, 2006 2:55 PM
> >To: Lawrence Zou; IPv6 WG
> >Cc: Bob Hinden; Brian Haberman; Jari Arkko
> >Subject: RE: PID --- a new option for Stateless Address 
> >Auto-Configuration
> >
> >
> >Ok. Just as you said, maybe it's a better way to allocate a 
> >unique global address/ prefix after the successful authentication.
> >
> >> -----Original Message-----
> >> From: Lawrence Zou [mailto:[email-masked]]
> >> Sent: 2006年6月7日 14:18
> >> To: CTO WEN Haibo; 'IPv6 WG'
> >> Cc: 'Bob Hinden'; 'Brian Haberman'; 'Jari Arkko'
> >> Subject: RE: PID --- a new option for Stateless Address 
> >> Auto-Configuration
> >> 
> >> 
> >> what i want to say is that host can get unique global 
> address before 
> >> passing  authentication by the way stateless or statefull address 
> >> configuration.
> >> 
> >> >-----Original Message-----
> >> >From: CTO WEN Haibo [mailto:[email-masked]]
> >> >Sent: Wednesday, June 07, 2006 2:09 PM
> >> >To: Lawrence Zou; IPv6 WG
> >> >Cc: Bob Hinden; Brian Haberman; Jari Arkko
> >> >Subject: RE: PID --- a new option for Stateless Address 
> >> >Auto-Configuration
> >> >
> >> >
> >> >the goal of PID option is to help implement stateless address
> >> >auto-configuration in access network. address allocation via 
> >> >DHCP is stateful address cofiguration.
> >> >
> >> >> -----Original Message-----
> >> >> From: Lawrence Zou [mailto:[email-masked]]
> >> >> Sent: 2006年6月7日 13:35
> >> >> To: CTO WEN Haibo; 'IPv6 WG'
> >> >> Cc: 'Bob Hinden'; 'Brian Haberman'; 'Jari Arkko'
> >> >> Subject: RE: PID --- a new option for Stateless Address
> >> >> Auto-Configuration
> >> >> 
> >> >> 
> >> >> no, i mean unique global address.
> >> >> for example ,got by DHCP.
> >> >> 
> >> >> >-----Original Message-----
> >> >> >From: CTO WEN Haibo [mailto:[email-masked]]
> >> >> >Sent: Wednesday, June 07, 2006 1:11 PM
> >> >> >To: Lawrence Zou; IPv6 WG
> >> >> >Cc: Jari Arkko; Brian Haberman; Bob Hinden
> >> >> >Subject: RE: PID --- a new option for Stateless Address
> >> >> >Auto-Configuration
> >> >> >
> >> >> >
> >> >> >Yes, you're right. In access network, before successful 
> >> >> >authentication, hosts only have their link-local IPv6 
> addresses. 
> >> >> >Once successful authentication, hosts get prefix to form their 
> >> >> >global IPv6
> >> >addresses.
> >> >> >
> >> >> >> -----Original Message-----
> >> >> >> From: Lawrence Zou [mailto:[email-masked]]
> >> >> >> Sent: 2006年6月7日 11:34
> >> >> >> To: CTO WEN Haibo; 'IPv6 WG'
> >> >> >> Cc: 'Jari Arkko'; 'Brian Haberman'; 'Bob Hinden'
> >> >> >> Subject: RE: PID --- a new option for Stateless Address 
> >> >> >> Auto-Configuration
> >> >> >> 
> >> >> >> 
> >> >> >> >In fact, prefix will not be allocated to a
> >> >> >> >subscriber network until it has successful
> >> >> >> >passed the authentication in access network. So at the very
> >> >> >> >beginning, BRAS will 
> >> >> >> >not send RA with prefix information to unauthenticated 
> >> >> >> >subscriber networks. Without this mechanism, hosts in 
> >> >> >> >unauthenticated subscriber network can enjoy 
> >> >> >> >Internet services.
> >> >> >> 
> >> >> >> i think it is no matter  with whether of not the
> >> subscriber have
> >> >> >> passed the authentication.
> >> >> >> hosts can get address befor they pass the authentication( I
> >> >> >> myself  are
> >> >> >> not saticified with this,
> >> >> >>  i also think it will be better that the host first pass the
> >> >> >> authentication then get address).The NAS 
> >> >> >> will decide whether or not allow the user to access to 
> >> >the internet
> >> >> >> according to the  authentication state of user.
> >> >> >> >
> >> >> >
> >> >> 
> >> >> 
> >> >> 
> >> >> 
> >> 
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> >> >> [email-masked]
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> >> >> 
> >> 
> --------------------------------------------------------------------
> >> >> 
> >> >
> >> 
> >> 
> >> 
> >
> 
> 
> 

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