Ownership of Routers on Both Ends of Transnational Links

Tue Apr 16 22:26:39 UTC 2019

"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 Tue, Apr 16, 2019 at 8:53 AM Pengxiong Zhu <pzhu011 at ucr.edu> wrote:

> Howdy folks,
>
> We are a group of researchers at UC Riverside conducting some measurement
> about transnational networks. In particular, we are interested in studying
> the ownership of routers on the two sides of transnational links.
>
> We have some concrete questions which we hope someone can shed some light
> on. Basically when we send packets from US/Canada to China, through
> traceroute and the RTT of each hop, we can locate the last hop in the US
> before the packets enter China (*there is a large jump of RTT of 100+ms
> from this hop onwards*). Oftentimes the ownership of such routers is
> ambiguous.
>
> These hops whose IPs seem to belong to US or European ISPs (*according to
> BGP info*) but their reverse DNS names have *chinaunicom* in it, which is
> a Chinese ISP.
> AS1299 Telia Company AB
> 62.115.170.57    name = chinaunicom-ic-341501-sjo-b21.c.telia.net.
> 62.115.33.230    name = chinaunicom-ic-302366-las-bb1.c.telia.net.
> 213.248.73.190  name = chinaunicom-ic-127288-sjo-b21.c.telia.net.
>
> AS701 Verizon Business
> 152.179.103.254  name = chinaunicom-gw.customer.alter.net.
>
> While the following routers, they don't have a reverse DNS name at all,
> which seem to be uncommon if they were managed by US or European ISPs but
> quite common for Chinese ISPs.
> AS6453 TATA COMMUNICATIONS (AMERICA) INC
> 63.243.205.90
> 66.110.59.118
>
> 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)?
>
>
> Best,
> Pengxiong Zhu
> Department of Computer Science and Engineering
> University of California, Riverside
>
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