i suspect the OP is down the rabbit hole of what is known as
"anti-aliasing," trying to find out whether IP address A on some router
is actually on the same router as IP address B, and what AS(s) those IPs
are in. your point is that an inter-as link may have IPs from either of
the providers. yup.
On Mon, May 13, 2019 at 12:31 PM Pengxiong Zhu wrote:
>
> Sorry for the confusion. I mean the IPs belong to non-Chinese ISPs but are
> actually controlled/managed by Chinese ISPs.
>
this is, as I think was said earlier, normal practice.
Sometimes you accept a /31 from your "provider" or "peer",
Sorry for the confusion. I mean the IPs belong to non-Chinese ISPs but are
actually controlled/managed by Chinese ISPs.
Best,
Pengxiong Zhu
Department of Computer Science and Engineering
University of California, Riverside
On Mon, May 13, 2019 at 8:52 AM Christopher Morrow
wrote:
> On Mon, May
On Mon, May 13, 2019 at 11:38 AM Pengxiong Zhu wrote:
>
> Thanks again for your insightful responses!
>
> The case we discuss above is Chinese ISPs renting routers located outside
> China and the IPs belong to other ISPs.
>
I think you are using all of the wrong verbs here... 'renting' does
not
54
>
> Desk: 773-661-5532
>
> Cell: 708-710-7419
>
> NOC: 866-892-0915
>
> Email: esundb...@nitelusa.com
>
> web: www.nitelusa.com
>
> --
> *From:* Zhiyun Qian
> *Sent:* Tuesday, April 16, 2019 1:02:36 PM
> *To:* Erik Sundbe
"Can anyone confirm that these are indeed managed by the Chinese ISPs (even
though they are physically located in the US according to the traceroute
and RTT analysis)?"
If a router is part of the CU AS, it's owed and managed by them. Physical
location isn't really relevant to your question.
On Tu
>
> this is totally true :) but... if the next hop after
> chinaunicom-ic-341501-sjo-b21.c.telia.net is a CU ip... it's better
> than average chance that the
> chinaunicom-ic-341501-sjo-b21.c.telia.net
> address is a telia /30 (or /31) on the ptp link between CU/Telia. That
> Telia owns the ip spac
Thank you so much for your insightful replies. We are asking the right
people!
I checked the rest of them, they all seem to be /30 or /31s.
62.115.33.227 jax-b1-link.telia.net
62.115.33.228 telconet-ic-337544-jax-b1.c.telia.net
62.115.33.229 las-bb1-link.telia.net
* 62.115.33.230 chinaunicom-ic-30
On Tue, Apr 16, 2019 at 5:19 PM Nimrod Levy wrote:
>
>
>
> On Tue, Apr 16, 2019, 16:52 Ross Tajvar wrote:
>>
>> I think it's clear that the IPs belong to Telia, but I understood James's
>> point to be that the router using the IP in question may belong to China
>> Unicom. (I agree with that, I
I think it's clear that the IPs belong to Telia, but I understood James's
point to be that the router using the IP in question may belong to China
Unicom. (I agree with that, I was not thinking clearly this morning.) As
this is an interconnect link, one side must belong to Telia and the other
to Ch
On Tue, Apr 16, 2019 at 10:59 AM James Jun wrote:
> More likely, thease routers are China Unicom's routers in their US POP, not
> managed by VZ/Telia.
> The /30s in this case are unmanaged IP transit hand-offs, coming in as Nx10G
> or 100G. When your
> IP transit provider assigns the /30, your
On Tue, Apr 16, 2019 at 09:13:30AM -0400, Ross Tajvar wrote:
> "company-ic" and "company-gw" are commonly used names for /30s used for
> interconnection to a customer or another carrier. Those routers are likely
> owned/managed by Telia/Verizon.
>
I highly doubt VZ or Telia owns and provides a Bi
"company-ic" and "company-gw" are commonly used names for /30s used for
interconnection to a customer or another carrier. Those routers are likely
owned/managed by Telia/Verizon.
On Tue, Apr 16, 2019 at 8:54 AM Pengxiong Zhu wrote:
> Howdy folks,
>
> We are a group of researchers at UC Riverside
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