Ok. We did mention this in the draft, but it seems you found it unclear. I will work with Alain to clarify the text. Thanks for the comments!
On 5/30/10 3:57 AM, "Jacni Qin" <[email protected]> wrote: > i agree with you that dns proxy over v6 in B4 should be preferred, > > while we should mention this special case in the draft, because this will be > not so special > if many hosts running that kind of OS still exist at the time when we start to > implement DS-Lite. > and the recommendations for dealing with this case may be also included. > > regards, > Jacni > > > On Fri, May 28, 2010 at 12:30 AM, Lee, Yiu <[email protected]> wrote: >> Agreed that there is no v4 dns server option (probably never will be) defined >> on dhcpv6. If the host doesnt want to statically configure the v4 dns server, >> in theory, the B4 could send a dhcpv4 dns request over the tunnel and the >> AFTR would relay it to a dhcpv4 server. But you can see, this is overkilled. >> The more sensible way is to implement dns proxy in B4. >> >> >> On May 27, 2010, at 11:55 AM, "Jacni Qin" < <mailto:[email protected]> >> [email protected]> wrote: >> >>> >>> On Thu, May 27, 2010 at 1:00 AM, Lee, Yiu < >>> <mailto:[email protected]> <mailto:[email protected]> >>> [email protected]> wrote: >>>> >>>> If the B4 is in the host, the B4 implementation should be able to proxy the >>>> v4 DNS request over v6. Or B4 tunnels the DNS message and sends to a v4 DNS >>>> server (less desirable). >>> >>> -- while as mentioned in the draft, currently there is no option defined for >>> passing the v4 DNS server address to hosts. >>> and for the DNS proxy case, do you mean if the OS doesn't support DNS >>> request over v6, we should then provider a patch for this function along >>> with the B4 implementation? >>> >>> thanks, >>> >>>> >>>> >>>> On 5/26/10 12:47 PM, "Jacni Qin" < <http://[email protected]> >>>> <mailto:[email protected]> [email protected]> wrote: >>>> >>>>> another question, >>>>> >>>>> for the host scenario(with DS-Lite software installed), what if the >>>>> operating system can not send DNS query over IPv6? >>>>> i'm sorry if i missed some discussion on this before. >>>>> >>>>> many thanks, >>>>> >>>>> Jacni >>>>> >>>>> On Wed, May 26, 2010 at 10:33 PM, Lee, Yiu < >>>>> <http://[email protected]> <mailto:[email protected]> >>>>> [email protected]> wrote: >>>>>> The B4 element contains a DNS proxy that will support DNS over v4 and >>>>>> proxy >>>>>> the DNS messages to the DNS server over v6 in the ISP network. The DNS >>>>>> server in the ISP must be able to resolve all the A and AAAA records. >>>>>> >>>>>> >>>>>> On 5/26/10 5:26 AM, " <http://[email protected]> >>>>>> <mailto:[email protected]> [email protected]" >>>>>> < <http://[email protected]> >>>>>> <mailto:[email protected]> [email protected]> wrote: >>>>>> >>>>>>> > Hi Alain, >>>>>>> > I have one question about DS-lite. Would you please clearify it? >>>>>>> Thanks. >>>>>>> > >>>>>>> > In your draft, you mention the B4 element can only get the IPv6 >>>>>>> address >>>>>>> > of a DNS recursive server, and as such will have to perform all DNS >>>>>>> > resolution over IPv6. I want to know whether the DNS server can >>>>>>> resolve all >>>>>>> > IPv4 nodes over IPv6 successfully. And how? Is it necessary that the >>>>>>> type A >>>>>>> > DNS query packet travels through AFTR? Is there any requirement for >>>>>>> the DNS >>>>>>> > server in the ISP core network? >>>>>>> > >>>>>>> > Best Regards, >>>>>>> > ------------------------------------ >>>>>>> > Zhenqiang Li >>>>>>> > 13911635816 >>>>>>> > Department of Network Technology >>>>>>> > China Mobile Research Institute >>>>>>> > 2010-05-26 >>>>>>> > _______________________________________________ >>>>>>> > Softwires mailing list >>>>>>> > <http://[email protected]> <mailto:[email protected]> >>>>>>> [email protected] >>>>>>> > <https://www.ietf.org/mailman/listinfo/softwires> >>>>>>> <https://www.ietf.org/mailman/listinfo/softwires> >>>>>>> https://www.ietf.org/mailman/listinfo/softwires >>>>>> >>>>>> _______________________________________________ >>>>>> Softwires mailing list >>>>>> <http://[email protected]> <mailto:[email protected]> >>>>>> [email protected] >>>>>> <https://www.ietf.org/mailman/listinfo/softwires> >>>>>> <https://www.ietf.org/mailman/listinfo/softwires> >>>>>> https://www.ietf.org/mailman/listinfo/softwires >>>>>> >>>>> >>>>> >>> > >
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