When running the Xfinity speed test using the Nashville server, I appear to be getting sent to Albuquerque for the IPv6 portion of the test (based on the server's hostname and the ping time).
[att=1]
C:\>dig -taaaa ipv6.nashville.speedtest.comcast.net ; <<>> DiG 9.9.2 <<>> -taaaa ipv6.nashville.speedtest.comcast.net;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 65443;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 1280;; QUESTION SECTION:;ipv6.nashville.speedtest.comcast.net. IN AAAA ;; ANSWER SECTION:ipv6.nashville.speedtest.comcast.net. 2898 IN AAAA 2001:558:fe26:2:69:241:93:14 ;; Query time: 78 msec;; SERVER: 192.168.9.2#53(192.168.9.2);; WHEN: Fri Jun 06 13:37:52 2014;; MSG SIZE rcvd: 93 C:\>dig -taaaa ipv6.albuquerque.speedtest.comcast.net ; <<>> DiG 9.9.2 <<>> -taaaa ipv6.albuquerque.speedtest.comcast.net;; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34855;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 1280;; QUESTION SECTION:;ipv6.albuquerque.speedtest.comcast.net. IN AAAA ;; ANSWER SECTION:ipv6.albuquerque.speedtest.comcast.net. 2866 IN AAAA 2001:558:fe18:1:69:241:36:70 ;; Query time: 93 msec;; SERVER: 192.168.9.2#53(192.168.9.2);; WHEN: Fri Jun 06 13:38:24 2014;; MSG SIZE rcvd: 95 C:\>tracert ipv6.nashville.speedtest.comcast.net Tracing route to ipv6.nashville.speedtest.comcast.net [2001:558:fe26:2:69:241:93:14]over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 2601:5:1f00:11e1:1e7e:e5ff:fe4c:e6ff 2 21 ms 8 ms 9 ms 2001:558:6016:3e::1 3 8 ms 8 ms 9 ms xe-10-0-1-32767-sur03.murfreesboro.tn.nash.comcast.net [2001:558:162:98::1] 4 43 ms 10 ms 9 ms xe-2-0-8-0-ar03.nashville.tn.nash.comcast.net [2001:558:160:a::1] 5 Destination host unreachable. Trace complete. C:\>tracert ipv6.albuquerque.speedtest.comcast.net Tracing route to ipv6.albuquerque.speedtest.comcast.net [2001:558:fe18:1:69:241:36:70]over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms 2601:5:1f00:11e1:1e7e:e5ff:fe4c:e6ff 2 8 ms 9 ms 17 ms 2001:558:6016:3e::1 3 8 ms 8 ms 8 ms xe-10-0-1-32767-sur03.murfreesboro.tn.nash.comcast.net [2001:558:162:98::1] 4 10 ms 22 ms 9 ms xe-2-0-11-0-ar03.nashville.tn.nash.comcast.net [2001:558:160:95::1] 5 23 ms 23 ms 24 ms he-2-13-0-0-cr01.350ecermak.il.ibone.comcast.net [2001:558:0:f691::1] 6 46 ms 47 ms 47 ms he-1-10-0-0-cr01.denver.co.ibone.comcast.net [2001:558:0:f5ad::2] 7 45 ms 47 ms 47 ms he-0-2-0-0-cr01.denverqwest.co.ibone.comcast.net [2001:558:0:f647::2] 8 53 ms 53 ms 52 ms te-2-3-ar01.albuquerque.nm.albuq.comcast.net [2001:558:0:f6c1::2] 9 52 ms 52 ms 53 ms te-9-1-ur01.albuquerque.nm.albuq.comcast.net [2001:558:40:1c::1] 10 72 ms 70 ms 71 ms te-8-1-ur02.albuquerque.nm.albuq.comcast.net [2001:558:40:1d::2] 11 71 ms 70 ms 70 ms 2001:558:fe18:1:69:241:36:70 Trace complete.
I can see that ipv6.nashville.speedtest.comcast.net does not seem to be responding, but why not use Atlanta or "Memphis" instead of going as far away as Albuquerque?
--
History does not long entrust the care of freedom to the weak or the timid.-- Dwight D. EisenhowerThe tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.-- Thomas Jefferson
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