GCE routing issue from EU and US to Asian (Singapore) IP address

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Dennis Brouwer

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Apr 19, 2016, 4:12:58 AM4/19/16

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We are using NodePing for uptime checks however we have many false positive alerts since NodePing servers from Singapore can't reach GCE EUR and US lately.

The specific NodePing server IP address (191.101.242.137) can be reached from GCE ASIA but can not be reached from GCE EUR and US. This seems a problem at Googles side.

Any help possible?

Most regards,

Dennis Brouwer

Attached traceroutes from our GCE locations.

From asia-east1-a

traceroute to 191.101.242.137 (191.101.242.137), 30 hops max, 60 byte packets 1 216.239.40.128 (216.239.40.128) 51.699 ms 209.85.241.135 (209.85.241.135) 51.214 ms 216.239.40.229 (216.239.40.229) 51.149 ms 2 216.239.40.225 (216.239.40.225) 51.752 ms 216.239.40.128 (216.239.40.128) 51.783 ms 51.778 ms 3 209.85.241.135 (209.85.241.135) 51.192 ms 216.239.40.134 (216.239.40.134) 51.849 ms 209.85.248.198 (209.85.248.198) 51.594 ms 4 209.85.248.222 (209.85.248.222) 51.316 ms 216.239.40.229 (216.239.40.229) 51.123 ms 216.239.40.227 (216.239.40.227) 51.240 ms 5 209.85.248.198 (209.85.248.198) 51.113 ms 216.239.40.225 (216.239.40.225) 51.107 ms 216.239.40.229 (216.239.40.229) 51.118 ms 6 209.85.241.135 (209.85.241.135) 51.212 ms 209.85.249.0 (209.85.249.0) 51.724 ms 216.239.40.225 (216.239.40.225) 51.144 ms 7 209.85.241.135 (209.85.241.135) 51.128 ms 216.239.40.225 (216.239.40.225) 50.874 ms 50.987 ms 8 209.85.248.222 (209.85.248.222) 51.605 ms 216.239.40.134 (216.239.40.134) 52.405 ms 209.85.241.135 (209.85.241.135) 51.019 ms 9 216.239.40.227 (216.239.40.227) 51.392 ms 209.85.241.135 (209.85.241.135) 51.173 ms 209.85.248.222 (209.85.248.222) 51.160 ms10 216.239.40.134 (216.239.40.134) 52.178 ms 209.85.241.135 (209.85.241.135) 51.017 ms 216.239.40.128 (216.239.40.128) 52.320 ms11 209.85.241.135 (209.85.241.135) 50.990 ms 50.972 ms 209.85.249.0 (209.85.249.0) 50.875 ms12 209.85.249.0 (209.85.249.0) 50.849 ms 209.85.248.222 (209.85.248.222) 51.340 ms 216.239.40.134 (216.239.40.134) 68.532 ms13 66.249.95.123 (66.249.95.123) 51.340 ms 66.249.95.125 (66.249.95.125) 52.138 ms 66.249.95.123 (66.249.95.123) 51.526 ms14 sg-ix-1ge.sin4.sg.voxel.net (103.16.102.44) 51.945 ms 51.857 ms 52.807 ms15 191.101.242.6 (191.101.242.6) 52.678 ms 52.783 ms 52.176 ms16 pinghostsg.nodeping.com (191.101.242.137) 52.394 ms 52.981 ms 52.586 ms

From eu-west1-b

traceroute to 191.101.242.137 (191.101.242.137), 30 hops max, 60 byte packets 1 209.85.248.70 (209.85.248.70) 1.125 ms 72.14.239.249 (72.14.239.249) 1.188 ms 0.977 ms 2 72.14.239.97 (72.14.239.97) 1.432 ms 209.85.248.70 (209.85.248.70) 1.127 ms 72.14.239.97 (72.14.239.97) 1.516 ms 3 209.85.250.164 (209.85.250.164) 0.643 ms 72.14.239.249 (72.14.239.249) 1.199 ms 209.85.248.70 (209.85.248.70) 1.208 ms 4 209.85.250.164 (209.85.250.164) 0.993 ms 0.842 ms 209.85.248.70 (209.85.248.70) 1.183 ms 5 72.14.239.97 (72.14.239.97) 1.570 ms 1.480 ms 209.85.250.164 (209.85.250.164) 0.963 ms 6 209.85.248.70 (209.85.248.70) 1.229 ms 72.14.239.97 (72.14.239.97) 1.316 ms 209.85.250.164 (209.85.250.164) 0.462 ms 7 209.85.248.70 (209.85.248.70) 0.997 ms 1.020 ms 1.061 ms 8 209.85.248.70 (209.85.248.70) 1.016 ms 72.14.239.97 (72.14.239.97) 1.240 ms 72.14.239.249 (72.14.239.249) 0.925 ms 9 209.85.253.209 (209.85.253.209) 6.937 ms 216.239.41.219 (216.239.41.219) 6.182 ms 209.85.253.209 (209.85.253.209) 7.004 ms10 209.85.254.251 (209.85.254.251) 81.840 ms 216.239.42.223 (216.239.42.223) 81.851 ms 209.85.254.251 (209.85.254.251) 81.870 ms11 74.125.37.170 (74.125.37.170) 93.229 ms 93.216 ms 74.125.37.54 (74.125.37.54) 93.207 ms12 72.14.239.171 (72.14.239.171) 107.441 ms 74.125.37.193 (74.125.37.193) 106.726 ms 106.245 ms13 209.85.245.57 (209.85.245.57) 212.096 ms 209.85.245.55 (209.85.245.55) 211.591 ms 72.14.235.27 (72.14.235.27) 208.868 ms14 209.85.255.88 (209.85.255.88) 214.843 ms 214.844 ms 209.85.245.50 (209.85.245.50) 220.028 ms15 209.85.240.146 (209.85.240.146) 211.799 ms 209.85.143.206 (209.85.143.206) 220.925 ms 209.85.240.146 (209.85.240.146) 211.699 ms16 * * *17 * * *18 * * *19 * * *20 * * *21 * * *22 * * *23 * * *24 * * *25 * * *26 * * *27 * * *28 * * *29 * * *30 * * *

From us-central1-b

traceroute to 191.101.242.137 (191.101.242.137), 30 hops max, 60 byte packets 1 209.85.142.46 (209.85.142.46) 45.053 ms 52.090 ms 43.678 ms 2 72.14.235.29 (72.14.235.29) 146.095 ms 209.85.250.113 (209.85.250.113) 146.064 ms 149.110 ms 3 72.14.235.136 (72.14.235.136) 151.759 ms 152.574 ms 209.85.245.52 (209.85.245.52) 157.617 ms 4 209.85.248.75 (209.85.248.75) 155.297 ms 153.813 ms 209.85.240.146 (209.85.240.146) 152.454 ms 5 * * * 6 * * * 7 * * * 8 * * * 9 * * *10 * * *11 * * *12 72.14.233.113 (72.14.233.113) 17.310 ms 209.85.248.33 (209.85.248.33) 16.604 ms 16.616 ms13 209.85.142.44 (209.85.142.44) 48.832 ms 48.835 ms 209.85.142.46 (209.85.142.46) 43.914 ms14 209.85.250.111 (209.85.250.111) 150.340 ms 209.85.250.113 (209.85.250.113) 148.810 ms 150.845 ms15 72.14.235.136 (72.14.235.136) 153.453 ms 152.175 ms 209.85.245.52 (209.85.245.52) 157.333 ms16 209.85.248.127 (209.85.248.127) 160.398 ms 209.85.248.75 (209.85.248.75) 155.037 ms 209.85.143.206 (209.85.143.206) 158.029 ms17 * * *18 * * *19 * * *20 * * *21 * * *22 * * *23 * * *24 * * *25 * * *26 * * *27 * * *28 * * *29 * * *