mirrors.fedoraproject.org from China

[Jason Vinton]

I have a simple question.  I live in Shanghai, and I have found that
everything on:
http://mirrors.fedoraproject.org/
is blocked.

A specific example of what is blocked is:
http://mirrors.fedoraproject.org/mirrorlist?repo=updates-released-f9.newkey&arch=x86_64

If this site is unavailable, yum does not function.

The part that concerns me is that it does not seem the be my ISP or
the Chinese Great Firewall that is doing the blocking.

Please see my tracepath:

[foo at localhost ~]$ tracepath   mirrors.fedoraproject.org
 1:  192.168.1.112 (192.168.1.112)                          0.301ms pmtu 1500
 1:  192.168.1.1 (192.168.1.1)                              2.099ms asymm 36
 1:  192.168.1.1 (192.168.1.1)                              1.788ms asymm 36
 2:  Deleted - private
 2:  Deleted - private
 3:  Deleted - private
 4:  Deleted - private
 5:  124.74.210.193 (124.74.210.193)                        4.470ms asymm  6
 6:  61.152.86.18 (61.152.86.18)                            5.346ms
 7:  202.97.33.18 (202.97.33.18)                           19.011ms
 8:  202.97.51.74 (202.97.51.74)                          197.722ms
 9:  192.205.35.85 (192.205.35.85)                        185.788ms
10:  tbr1.sffca.ip.att.net (12.122.86.26)                 205.177ms asymm 20
11:  12.122.19.41 (12.122.19.41)                          203.850ms asymm 19
12:  cr1.la2ca.ip.att.net (12.122.3.122)                  204.838ms asymm 18
13:  cr2.phmaz.ip.att.net (12.122.31.190)                 205.038ms asymm 17
14:  tbr2.phmaz.ip.att.net (12.122.22.206)                205.099ms asymm 16
15:  gar3.phmaz.ip.att.net (12.123.206.29)                204.302ms asymm 14
16:  12.122.255.18 (12.122.255.18)                        204.990ms asymm 15
17:  mdf1-bi8k-2-eth-2-2.phx1.attens.net (63.241.128.186) 224.508ms asymm 16
18:  no reply
19:  no reply
20:  no reply
21:  no reply
22:  no reply
23:  no reply
24:  no reply
25:  no reply
26:  no reply
27:  no reply
28:  no reply
29:  no reply
30:  no reply
31:  no reply
     Too many hops: pmtu 1492
     Resume: pmtu 1492

Hop 17 ( 63.241.128.186 ) is in San Diego California.  A bunch of
these IP address are run by AT&T in NJ.

I have learned that more and more of the blocked sites are not due to
the Great Firewall, but are blocked by US ISPs and site admins who
block all requests from China.

I can reach:
http://fedoraproject.org/
without any problems.

I eventually started using a proxy which made my requests appear to
come from a US based IP address, and then yum worked perfectly.

Can anyone provide some insights into what is happening?