Re: [v6ops] 82nd IETF DRAFT Agenda

[Joel jaeggli <[e-mail]>]

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.



> 
> 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
>>>
>>>
>>
> 
>