Charter Blackholing AS29889

Tue Sep 25 13:32:03 UTC 2012

Hi guys (and sorry for the noise),

It appears return traffic from Charter to our ASN is blackholed.  
According to all three of our upstreams they are delivering traffic but 
it's not coming back.  Unfortunately I don't have a reverse traceroute 
(our emails to charter customers are bouncing) so I have no idea what 
transit path they are returning traffic on.  I tried fiddling with our 
outbound paths to no avail.  If someone on a Charter connection could 
shoot me a traceroute to 209.9.238.7 that would be great.  Ultimately if 
someone from Charter is willing to help that would be awesome as well.

Source IP:  209.9.238.7 (AS29889)
Dest IP:  75.140.10.216

Via HE:

[root at mon ~]# traceroute 75.140.10.216
traceroute to 75.140.10.216 (75.140.10.216), 30 hops max, 60 byte 
packets
  1  209.9.238.1 (209.9.238.1)  0.551 ms  0.790 ms  0.512 ms
  2  gige-g4-13.core1.ash1.he.net (216.66.0.225)  12.029 ms  12.094 ms  
12.158 ms
  3  * * *
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Via Abovenet:

[root at mon ~]# traceroute 75.140.10.216
traceroute to 75.140.10.216 (75.140.10.216), 30 hops max, 60 byte 
packets
  1  209.9.238.1 (209.9.238.1)  0.544 ms  0.540 ms  0.573 ms
  2  208.185.24.1 (208.185.24.1)  0.206 ms  0.218 ms  0.200 ms
  3  xe-4-2-0.er1.iad10.us.above.net (64.125.29.198)  0.228 ms  0.232 ms 
0.215 ms
  4  above-telia.iad10.us.above.net (64.125.13.158)  117.943 ms  117.958 
ms  117.763 ms
  5  las-bb1-link.telia.net (80.91.246.71)  62.157 ms  62.162 ms  62.189 
ms
  6  cco-ic-151505-las-bb1.c.telia.net (213.248.79.102)  72.780 ms  
70.183 ms  70.151 ms
  7  * * *
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-- 
Randy McAnally