Re: [v6ops] 82nd IETF DRAFT Agenda

[Yu Guanghui <[e-mail]>]

在 2011-10-31，下午12:59， Joel jaeggli 写道：

> On 10/30/11 21:53 , Yu Guanghui wrote:
>> Here is a example:
>> 
>> ping ivi.dlut.edu.cn   <- it's a pure IPv6 site behind a stateless translator.
>> PING ivi.dlut.edu.cn (58.200.163.1) 56(84) bytes of data.
>> 64 bytes from 58.200.163.1: icmp_seq=1 ttl=45 time=103 ms
>> 64 bytes from 58.200.163.1: icmp_seq=2 ttl=45 time=106 ms
>> 
>> but when we trace it:
>> 
>> traceroute ivi.dlut.edu.cn
>> traceroute to ivi.dlut.edu.cn (58.200.163.1), 30 hops max, 40 byte packets
>> 1  202.118.66.1 (202.118.66.1)  0.399 ms  0.459 ms  0.582 ms
>> ...
>> 10  202.112.61.182 (202.112.61.182)  15.579 ms *  15.503 ms  <- what happened here? maybe a firewall, router or translator?
>> 11  * * *
>> 12  * * *
>> ....
>> 29  * * *
>> 30  * * *
> 
> right...
> 
> and we know that  this guy:
> 
> 202.112.61.182
> 
> Is the last hop on this side of the event horizon.  just like if there
> were a firewall or a non-stateful icmp filter.

The difference is it happens close to the end host in IPv4 firewall schema, but in stateless IPv4-IPv6 Schema, it maybe happen in somewhere IPv4-IPv6 edge of ISP ( in middle of end hosts).

> 
> 
> 
>> 
>> We will don't what happened after hop 10.  If we have a special mapping address, for example 192.70.192.0, we will understand there's a translator and have some other helpful information.
>> 
>> 
>> Yu Guanghui <ygh at dlut.edu.cn>
>> Network and Information Center
>> Dalian University of Technology, China
>> Tel: [phone]
>> 
>> 在 2011-10-31，上午11:17， Joel jaeggli 写道：
>> 
>>> On 10/30/11 20:00 , Yu Guanghui wrote:
>>>> 
>>>> 
>>>> 在 2011-10-31，上午10:39， Joel jaeggli 写道：
>>>> 
>>>>> On 10/30/11 18:50 , Fred Baker wrote:
>>>>>> 
>>>>>> On Oct 31, 2011, at 6:51 AM, Joel jaeggli wrote:
>>>>>> 
>>>>>>> On 10/30/11 03:32 , 孟少卿 wrote:
>>>>>>>> Hi all I also support draft-xli-v6ops-ivi-icmp-address-00.txt  to
>>>>>>>> be adopted as a WG document in V6ops. A special block of IPv4
>>>>>>>> address mapping for  the non-directly translatable IPv6 address
>>>>>>>> will  helpful for us to troubleshoot. We have deployed the
>>>>>>>> stateless translator for about two years in the campus networks.
>>>>>>> 
>>>>>>> What addresses do you presentialy use a the source address for
>>>>>>> icmp messages sent from the stateless translator?
>>>>>> 
>>>>>> My understanding is that he doesn't - the message is dropped. The net
>>>>>> effect in a traceroute (IPv4) is to see something that looks like a
>>>>>> routing loop or a black hole on the far side (IPv6) of the
>>>>>> translator. He'd like something that shows that distance is
>>>>>> progressing and it's a state number of hops beyond the translator.
>>>>>> It's not all the information one would like to see, but it's more and
>>>>>> better than "* * *".
>>>>> 
>>>>> Why not use a gua v4 address bound to the translator
>>>>> 
>>>> 
>>>> From IPv4 side, We can't identify it's a translator or a regular router if use a IPv4 address bound to the translator.
>>> 
>>> it is a router...
>>> 
>>>> 
>>>>> It might not be asthetically pleasing but it identifies the source
>>>>> rather well and it's not likely to be filtered.
>>>>> 
>>>>>> In the reverse direction, traceroute6 from the IPv6 side, the ICMP6
>>>>>> message can represent the IPv4 address as ::ipv4 or ::FFFF:ipv4. We
>>>>>> see that in the wild now.
>>>>>> 
>>>>>>>> Best Regards Shaoqing Meng Tianjin University Information and
>>>>>>>> Network Center
>>>>>>>> 
>>>>>>>> -----邮件原件----- 发件人: [e-mail] 
>>>>>>>> [mailto:[e-mail]] 代表 Xing Li 发送时间: 2011年10月24日
>>>>>>>> 18:37 收件 人: V6ops Chairs 抄送: [e-mail] WG 主题: Re: [v6ops]
>>>>>>>> Fwd: 82nd IETF DRAFT Agenda
>>>>>>>> 
>>>>>>>> Hi, Fred and All,
>>>>>>>> 
>>>>>>>> 于 2011/10/14 5:52, Fred Baker 写道:
>>>>>>>>> The initial version of the agenda has been posted. It places
>>>>>>>>> v6ops on Wednesday and Friday mornings, a total of 4.5 hours.
>>>>>>>>> I personally am satisfied with it, but if folks have issues I
>>>>>>>>> can pass them along.
>>>>>>>>> 
>>>>>>>>> I'll note that the deadline for -00 drafts is 24 October, and
>>>>>>>>> the deadline for updated drafts is a week later. For discussion
>>>>>>>>> in the working group meetings, I'm looking for a draft posted
>>>>>>>>> after 25 July, with supporting email discussion on the list.
>>>>>>>>> 
>>>>>>>>> I'm looking for (and in some cases have seen) commentary on
>>>>>>>>> each of:
>>>>>>>>> 
>>>>>>>>> -rw-rw-r--  1 fred  fred  13796 Jul 25 23:59 
>>>>>>>>> draft-xli-v6ops-ivi-icmp-address-00.txt
>>>>>>>> 
>>>>>>>> I would like to request that the V6ops WG adopt 
>>>>>>>> draft-xli-v6ops-ivi-icmp-address-00.txt as a WG adoption.
>>>>>>>> 
>>>>>>>> The draft describes the operational considerations of mapping
>>>>>>>> ICMPv6 packets through an RFC6145 gateway where the IPv6 address
>>>>>>>> is not directly translatable into an IPv4 address, and requests
>>>>>>>> an IANA Special Purpose IPv4 address allocation (192.70.192.0/24)
>>>>>>>> to allow this address mapping to take place using a
>>>>>>>> protocol-specific designated address block in IPv4.
>>>>>>>> 
>>>>>>>> The authors are hopeful that this will not require any valuable 
>>>>>>>> face-to-face WG time at IETF 82 and the WG's consideration of
>>>>>>>> this document can be undertaken entirely on the mailing list.
>>>>>>>> 
>>>>>>>> Regards,
>>>>>>>> 
>>>>>>>> xing
>>>>>>>> 
>>>>>>>>> -rw-rw-r--  1 fred  fred  34974 Sep 14 10:45 
>>>>>>>>> draft-ietf-v6ops-happy-eyeballs-04.txt -rw-rw-r--  1 fred
>>>>>>>>> fred 26625 Sep 27 13:22 
>>>>>>>>> draft-kuarsingh-v6ops-6to4-provider-managed-tunnel-04.txt 
>>>>>>>>> -rw-rw-r--  1 fred  fred  25341 Oct  2 11:39 
>>>>>>>>> draft-jjmb-v6ops-comcast-ipv6-experiences-02.txt -rw-rw-r--  1
>>>>>>>>> fred fred  28127 Oct  6 14:13 
>>>>>>>>> draft-gashinsky-v6ops-v6nd-problems-00.txt -rw-rw-r--  1 fred
>>>>>>>>> fred 45016 Oct  7 12:39 draft-ietf-v6ops-6204bis-00.txt
>>>>>>>>> -rw-rw-r--  1 fred  fred   8877 Oct 10 09:00 
>>>>>>>>> draft-ietf-v6ops-ipv6-discard-prefix-00.txt -rw-rw-r--  1 fred 
>>>>>>>>> fred  15656 Oct 12 20:38 
>>>>>>>>> draft-carpenter-v6ops-label-balance-00.txt
>>>>>>>>> 
>>>>>>>>> plus any new drafts that are posted.
>>>>>>>>> 
>>>>>>>>> Begin forwarded message:
>>>>>>>>> 
>>>>>>>>>> From: IETF Agenda<[e-mail]> Date: October 13, 2011
>>>>>>>>>> 2:13:10 PM PDT To: Working Group Chairs<[e-mail]> 
>>>>>>>>>> Cc:[e-mail] Subject: 82nd IETF DRAFT Agenda
>>>>>>>>>> 
>>>>>>>>>> The DRAFT agenda is ready for viewing.  Please note the
>>>>>>>>>> cutoff date for requests to reschedule Working Group and BOF
>>>>>>>>>> meetings is October 17, 2011 17:00 PT.  The final agenda will
>>>>>>>>>> be published on October 21, 2011.
>>>>>>>>>> 
>>>>>>>>>> https://datatracker.ietf.org/meeting/82/agenda.html 
>>>>>>>>>> https://datatracker.ietf.org/meeting/82/agenda.txt
>>>>>>>>>> 
>>>>>>>>>> http://www.ietf.org/meeting/82/index.html
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> Thanks, Wanda
>>>>>>>>>> 
>>>>>>>>>> Only 30 days until Taipei, 82nd IETF! Online registration for
>>>>>>>>>> the IETF meeting is at:
>>>>>>>>>> http://www.ietf.org/meeting/register.html
>>>>>>>>>> 
>>>>>>>>> _______________________________________________ v6ops mailing
>>>>>>>>> list [e-mail]
>>>>>>>>> https://www.ietf.org/mailman/listinfo/v6ops
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>> 
>>>>>>>> _______________________________________________ v6ops mailing
>>>>>>>> list [e-mail] https://www.ietf.org/mailman/listinfo/v6ops
>>>>>>>> 
>>>>>>>> _______________________________________________ v6ops mailing
>>>>>>>> list [e-mail] https://www.ietf.org/mailman/listinfo/v6ops
>>>>>>>> 
>>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> v6ops mailing list
>>>>> [e-mail]
>>>>> https://www.ietf.org/mailman/listinfo/v6ops
>>>> 
>>>> 
>>> 
>> 
>> 
>