[CentOS-mirror] New mirror

Sun Mar 19 20:01:11 UTC 2017
Dewangga Bachrul Alam <dewanggaba at xtremenitro.org>

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Hello Anssi,

Would you like to share how Cent OS team determine the mirror location
by an IP address? Let's pick an example, softlayer has an IP test on
Mexico (speedtest.mex01.softlayer.com), but yes, the traffic is
through US than directly to Mexico. Possible it's IP Transit, since
MIE (Mexico Internet Exchange) have same traceroute details.

=== Mexico Internet Exchange
$host -t a mie.mx
mie.mx has address 199.48.226.6
$whois 199.48.226.6
[Querying whois.arin.net]
[whois.arin.net]

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/public/whoisinaccuracy/index.xhtml
#


#
# The following results may also be obtained via:
#
https://whois.arin.net/rest/nets;q=199.48.226.6?showDetails=true&showARI
N=false&showNonArinTopLevelNet=false&ext=netref2
#

NetRange:       199.48.224.0 - 199.48.227.255
CIDR:           199.48.224.0/22
NetName:        MEXICO2
NetHandle:      NET-199-48-224-0-1
Parent:         NET199 (NET-199-0-0-0-0)
NetType:        Direct Assignment
OriginAS:       AS395565
Organization:   Mexico Internet Exchange (PT-323)
RegDate:        2010-11-03
Updated:        2016-10-21
Ref:            https://whois.arin.net/rest/net/NET-199-48-224-0-1


OrgName:        Mexico Internet Exchange
OrgId:          PT-323
Address:        5872 Owens Ave
City:           Carlsbad
StateProv:      CA
PostalCode:     92008
Country:        US
RegDate:        2015-07-13
Updated:        2016-10-12
Ref:            https://whois.arin.net/rest/org/PT-323


OrgNOCHandle: NETWO7910-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-720-708-1835
OrgNOCEmail:  noc at mie.mx
OrgNOCRef:    https://whois.arin.net/rest/poc/NETWO7910-ARIN

OrgAbuseHandle: NETWO7910-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-720-708-1835
OrgAbuseEmail:  noc at mie.mx
OrgAbuseRef:    https://whois.arin.net/rest/poc/NETWO7910-ARIN

OrgTechHandle: NETWO7910-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-720-708-1835
OrgTechEmail:  noc at mie.mx
OrgTechRef:    https://whois.arin.net/rest/poc/NETWO7910-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/public/whoisinaccuracy/index.xhtml
#

And I tried to traceroute the IP from cogentco looking glass and
select Mexico Router
(http://www.cogentco.com/en/network/looking-glass) using IPv4 Test.

traceroute to www.mie.mx (199.48.226.6), 30 hops max, 60 byte packets
 1  gi0-7-1-19.99.rcr21.mex01.atlas.cogentco.com (66.250.250.9)  0.750
ms  0.752 ms
 2  be2692.rcr21.mfe02.atlas.cogentco.com (154.24.23.25)  12.952 ms
12.956 ms
 3  be2888.ccr42.iah01.atlas.cogentco.com (154.54.47.45)  23.998 ms
be2887.ccr41.iah01.atlas.cogentco.com (154.54.47.33)  22.499 ms
 4  be2927.ccr21.elp01.atlas.cogentco.com (154.54.29.222)  38.106 ms
38.111 ms
 5  be2929.ccr21.phx02.atlas.cogentco.com (154.54.42.65)  44.452 ms
44.462 ms
 6  be2932.ccr22.lax01.atlas.cogentco.com (154.54.45.162)  56.220 ms
be2931.ccr21.lax01.atlas.cogentco.com (154.54.44.86)  57.468 ms
 7  be2964.ccr41.lax04.atlas.cogentco.com (154.54.44.78)  57.772 ms
57.780 ms
 8  38.140.128.50 (38.140.128.50)  59.533 ms  60.873 ms
 9  virt.mie.mx (199.48.226.6)  59.472 ms  59.465 ms

=== machost.co using cogent from mexico router
traceroute to 204.45.61.61 (204.45.61.61), 30 hops max, 60 byte packets
 1  gi0-7-1-19.99.rcr21.mex01.atlas.cogentco.com (66.250.250.9)  0.718
ms  0.717 ms
 2  be2692.rcr21.mfe02.atlas.cogentco.com (154.24.23.25)  12.946 ms
be3004.rcr22.mfe02.atlas.cogentco.com (154.54.41.130)  13.252 ms
 3  be2888.ccr42.iah01.atlas.cogentco.com (154.54.47.45)  22.122 ms
be2887.ccr41.iah01.atlas.cogentco.com (154.54.47.33)  23.653 ms
 4  be2441.ccr21.dfw01.atlas.cogentco.com (154.54.41.66)  28.717 ms
27.707 ms
 5  be2432.ccr21.mci01.atlas.cogentco.com (154.54.3.134)  35.932 ms
35.942 ms
 6  be3035.ccr21.den01.atlas.cogentco.com (154.54.5.89)  49.365 ms
49.025 ms
 7  be2603.rcr21.b000577-1.den01.atlas.cogentco.com (154.54.40.114)
49.909 ms be2604.rcr21.b000577-1.den01.atlas.cogentco.com
(154.54.40.138)  50.009 ms
 8  core29.aggr0.den.fdcservers.net (38.140.32.242)  48.824 ms  48.835 m
s
 9  204-45-61-61.host-engine.com (204.45.61.61)  47.693 ms  47.726 ms

The good news is, I can get result from atlas probe, 10 probes on
mexico are active.

Measurements to 204.45.61.61
https://atlas.ripe.net/measurements/7930303/#!probes

Measurements to mie.mx
https://atlas.ripe.net/measurements/7930313/#!probes

Any hints from traceroute above? Hope it helps.

Notes:
Is there any FAQ from mirror team about choosing mirror location
determine by an IP Address? Correct me if I'm wrong.

On 03/18/2017 07:02 AM, Anssi Johansson wrote:
> 18.3.2017, 1.59, Mach Host kirjoitti:
>> hello,
>> 
>> the ISP is peering locally with mexican isps, only the
>> international traffic goes throught US
> 
> Let's get back to this when you can verifiably demonstrate a
> traceroute from some other Mexican host to centos.mexico.machost.co
> without the traffic going through U.S. in between. Does this sound
> fair?
> 
> _______________________________________________ CentOS-mirror
> mailing list CentOS-mirror at centos.org 
> https://lists.centos.org/mailman/listinfo/centos-mirror
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