Sites ending with .gov.sg appear to be blocked. How do I gain access?
lookeying
Enthusiast - Level 1

I have not been able to access these sites for 2 days. The sites are actually up, I can still access them from my AT&T smartphone. So Verizon appears to be blocking them.

I regularly need to access these sites, so I would probably need to change provider if this continues. The sites are all governmental sites, so I don't see how they could be a source of security issues. 

Grateful if anyone has any clue about how to get Verizon to lift their block of these sites. 

Re: Sites ending with .gov.sg appear to be blocked. How do I gain access?
smith6612
Community Leader
Community Leader

It's hard to say if it is a block or not on the IP addresses used for their sites. To me, it looks like a router somewhere took a dump and has a bad routing table. I can reach some of the gov.sg subdomains, but most of them fail to connect. My web server is able to connect to the *.gov.sg domains without an issue, and traces to them over NLayer in Chicago where I hop onto Seabone in Chicago heading directly to Singapore and hit their server with ~230ms latency (awesome routing...).

See: Hop 2 is the Verizon edge router. Hop 3 is normally the core router for the backbone in my area. Hop 1 is my router. I'm on DSL. The Final Trace route goes to a working website. Notice, I route successfully through the Verizon network onto NTT, where I eventually route to Japan and from there, Singapore.


Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation.  All rights reserved.

C:\Users\>tracert www.gov.sg

Tracing route to www.gov.sg [160.96.187.100]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  DD-WRT [192.168.3.1]
  2     9 ms     9 ms     8 ms  10.15.3.1
  3     *        *        *     Request timed out.
  4     *        *     ^C
C:\Users\>tracert www.mfa.gov.sg

Tracing route to www.mfa.gov.sg [160.96.178.46]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  DD-WRT [192.168.3.1]
  2     9 ms     8 ms     9 ms  10.15.3.1
  3     *        *        *     Request timed out.
  4  ^C
C:\Users\>tracert www.mom.gov.sg

Tracing route to www.mom.gov.sg [203.117.191.66]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  DD-WRT [192.168.3.1]
  2     9 ms     8 ms     9 ms  10.15.3.1
  3     9 ms     9 ms     8 ms  so-1-1-0-0.BUFF-CORE-RTR2.verizon-gni.net [130.81.13.77]
  4    20 ms    20 ms    19 ms  as4-0.NY5030-BB-RTR1.verizon-gni.net [130.81.20.106]
  5    19 ms    20 ms    52 ms  0.ae5.BR3.NYC4.ALTER.NET [152.63.16.9]
  6    20 ms    20 ms    20 ms  204.255.169.234
  7    21 ms    21 ms    21 ms  ae-2.r22.nycmny01.us.bb.gin.ntt.net [129.250.4.174]
  8   109 ms   108 ms   104 ms  ae-4.r21.sttlwa01.us.bb.gin.ntt.net [129.250.2.51]
  9   233 ms   251 ms   239 ms  as-2.r21.osakjp01.jp.bb.gin.ntt.net [129.250.3.86]
 10   240 ms   291 ms   290 ms  ae-2.r22.osakjp01.jp.bb.gin.ntt.net [129.250.2.69]
 11   249 ms   244 ms   234 ms  ae-5.r24.tokyjp01.jp.bb.gin.ntt.net [129.250.3.221]
 12   211 ms   218 ms   220 ms  ae-5.r22.tokyjp01.jp.bb.gin.ntt.net [129.250.3.154]
 13   308 ms   306 ms   305 ms  p16-7-1-1.r22.tokyjp01.jp.ce.gin.ntt.net [129.250.12.70]
 14   313 ms   295 ms   311 ms  vlan907-an-cat6k-ts1-r1.starhub.net.sg [203.118.3.215]
 15   281 ms   286 ms   310 ms  shiatl5.starhub.net.sg [203.118.7.26]
 16     *        *        *     Request timed out.
 17  ^C
C:\Users\>


Web server: (1Gbps Unmetered, was at 300Mbps outbound traffic at time of trace)


smith@Assimilator [~]# traceroute business.gov.sg
traceroute to business.gov.sg (160.96.178.133), 30 hops max, 40 byte packets
 1  Assimilator (*.*.*.*)  0.045 ms  0.035 ms  0.025 ms
 2  xe-2-0-4.ar1.ord6.us.nlayer.net (69.31.110.201)  1.788 ms  4.697 ms  1.741 ms
 3  ae5-30g.cr2.ord1.us.nlayer.net (69.31.110.253)  1.349 ms  1.316 ms ae5-30g.cr1.ord1.us.nlayer.net (69.31.110.249)  1.274 ms
 4  ae1.ar2.ord1.us.nlayer.net (69.31.111.146)  4.133 ms  4.663 ms  4.071 ms
 5  as6762.xe-3-0-0.ar2.ord1.us.nlayer.net (69.31.111.78)  1.584 ms  1.573 ms  1.558 ms
 6  ge4-0-0.singapore2.sin.seabone.net (93.186.133.20)  258.670 ms  260.391 ms  258.593 ms
 7  starhub-50.singapore2.sin.seabone.net (93.186.133.50)  244.566 ms  247.079 ms  242.940 ms
 8  vlan907-an-cat6k-ts2-r1.starhub.net.sg (203.118.3.217)  246.552 ms  244.573 ms  244.740 ms
 9  gi8-1-0-an-ats-loc04.starhub.net.sg (203.118.7.11)  221.924 ms  221.782 ms  221.748 ms
10  203.117.189.82 (203.117.189.82)  238.154 ms  238.370 ms  238.102 ms
11  160.96.97.244 (160.96.97.244)  223.395 ms  222.729 ms  222.859 ms

smith@Assimilator [~]# traceroute www.gov.sg
traceroute to www.gov.sg (160.96.187.100), 30 hops max, 40 byte packets
 1  Assimilator (*.*.*.*)  0.026 ms  0.064 ms  0.019 ms
 2  xe-2-0-4.ar1.ord6.us.nlayer.net (69.31.110.201)  3.766 ms  4.363 ms  4.369 ms
 3  ae5-30g.cr1.ord1.us.nlayer.net (69.31.110.249)  1.377 ms  1.365 ms ae5-30g.cr2.ord1.us.nlayer.net (69.31.110.253)  64.652 ms
 4  ae2-30g.ar2.ord1.us.nlayer.net (69.31.111.150)  3.065 ms  3.083 ms  3.046 ms
 5  as6762.xe-3-0-0.ar2.ord1.us.nlayer.net (69.31.111.78)  1.608 ms  1.604 ms  1.541 ms
 6  ge4-0-0.singapore2.sin.seabone.net (93.186.133.20)  258.498 ms  258.502 ms  258.636 ms
 7  starhub-50.singapore2.sin.seabone.net (93.186.133.50)  221.941 ms  247.428 ms  240.841 ms
 8  vlan907-an-cat6k-ts2-r1.starhub.net.sg (203.118.3.217)  244.947 ms  244.897 ms  244.834 ms
 9  gi8-1-0-an-ats-loc04.starhub.net.sg (203.118.7.11)  238.259 ms  238.255 ms  238.217 ms
10  203.117.189.82 (203.117.189.82)  241.477 ms  241.900 ms  243.698 ms
11  160.96.97.244 (160.96.97.244)  242.531 ms  242.312 ms  242.247 ms
smith@Assimilator [~]#


If you noticed the name of my server, yeah I'm a gamer. Yes, it's a dedicated server and yes, it runs lots of game servers, hence the name.

For the time being, I would suggest using either your AT&T Smartphone when you need to visit the site, use a Public Web Proxy if possible, or use a VPN connection to run over another ISP until we find out what the issue is.

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