Ralph, I'm confident that so-called stateful DHCPv6 is a very good choice for ISP-to-Customer(CPE) prefix delegation and some cases of CPE-to-HOST configuration where manegement is strictly required and 'O' bit should be set.
IMO, so-called stateless DHCP is not bad also for CPE-to-HOST configuration, but I still wonder how a host know which stateless mechanism to use when 'O' bit is not set, for example, stateless DHCP or itojun-thaler method for DNS cache discovery. Probably the most important differnce between those two methods is that expensive memory space is required or not to store configuration parameters and codes for discovery protocols. --Toshi > Toshi, > > Is DHCPv6 (configuration-only or "stateless" DHCPv6) a viable option for > host configuration - are there now or will there be hosts with DHCPv6 for > those home networks where the "O" bit is set? > > - Ralph > > At 11:33 AM 5/20/2002 +0900, Toshi Yamasaki wrote: > >Hi, Juha!! > > > >Yes, this is one of the most important but difficult issues to solve. I > >guess you agree that one or fewer mechanisms are better to achieve a real > >autoconfiguration :-) > > > >In my scenario for fixed access services like DSL or FTTH, I assume: > > > >- PE(NAS) -> CPE(Customer's Router) : stateful mechanism like DHCPv6 > >- CPE -> HOSTs : stateless mechanism (itojun-thaler?) or stateful > >mechanism(DHCPv6?), according to "O" bit of RA > > > >IMO, "mobility and seemlessness" is the key to select any auto-configuration > >mechanisms for HOSTs so that HOSTs don't have to prepare every differnt > >mechanism to be used at home, office, hotspot, mobile enviroment and so on. > > > >---Toshi > > > >----- Original Message ----- > >From: <[EMAIL PROTECTED]> > >To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > >Cc: <[EMAIL PROTECTED]> > >Sent: Saturday, May 18, 2002 4:02 AM > >Subject: RE: new revision ofcellular host draft > > > > > >Hi, Toshi! > > > >This is unfortunately an issue we could not give 'an exact answer' in our > >draft. At least these possibilitites (I'm not commenting anything on their > >pros and cons) exist at the moment: > > > >- use of stateless DNS discovery > > > >- use of stateful DNS discovery (i.e. a DHCPv6-based mechanism) > > > >- use a PPP based mechanism in PDP context activation (this kind of > >mechanism is existing / in use for IPv4: RFC1877) > > > > (these three are not in 'RFC-level' yet...) > > > >- manual configuration in the terminal, i.e. typing the DNS server address > >manually (which is not very pleasant...) > > > >- receiving the configuration information OTA, i.e. using SMS to configure > >that information > > > >BR, > >-Juha W.- > > > >-----Original Message----- > >From: ext Toshi Yamasaki [mailto:[EMAIL PROTECTED]] > >Sent: 17 May, 2002 20:14 > >To: Hesham Soliman (ERA) > >Cc: [EMAIL PROTECTED] > >Subject: Re: new revision ofcellular host draft > > > > > >Just a quick question. How cellular hosts discover DNS cache servers' > >addresses? > > > > > Hi all, > > > > > > I have submitted a new revision of the draft > > > today. Until it is pulished by the IETF you > > > can find it at > > > http://standards.ericsson.net/Hesham/draft-ietf-ipv6-cellular-host-02.txt > > > > > > We hope that this draft will be ready for WG last call > > > when it appears on the IETF pages. > > > > > > Thanks > > > Hesham > > > -------------------------------------------------------------------- > > > IETF IPng Working Group Mailing List > > > IPng Home Page: http://playground.sun.com/ipng > > > FTP archive: ftp://playground.sun.com/pub/ipng > > > Direct all administrative requests to [EMAIL PROTECTED] > > > -------------------------------------------------------------------- > > > > > > > > > > > >-------------------------------------------------------------------- > >IETF IPng Working Group Mailing List > >IPng Home Page: http://playground.sun.com/ipng > >FTP archive: ftp://playground.sun.com/pub/ipng > >Direct all administrative requests to [EMAIL PROTECTED] > >-------------------------------------------------------------------- > > > > > > > > > >-------------------------------------------------------------------- > >IETF IPng Working Group Mailing List > >IPng Home Page: http://playground.sun.com/ipng > >FTP archive: ftp://playground.sun.com/pub/ipng > >Direct all administrative requests to [EMAIL PROTECTED] > >-------------------------------------------------------------------- > > -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
