AT&T Mobility DNS blocking

Wed Jan 25 22:58:13 UTC 2017

Greetings,

It seems AT&T Mobility is blocking EDNS1 queries such as the following on their mobile network, as seen in the details below.

Does anyone have a colleague there that would be willing to investigate?

- jared

EDNS1 OPT RR

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15902
;; flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;;	., type = SOA, class = IN
; EDNS: version: 1, udp=4096, flags=0000

Sending:

000000  3e 1e 01 00 00 01 00 00 00 00 00 01 00 00 06 00  >...............
000010  01 00 00 29 10 00 00 01 00 00 00 00              ...)........