Implementing Client Subnet DNS Requests
Published Jun 16, 2015
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As an FYI for anyone testing, using a recent DIG version (eg 9.10), the "+subnet" is used to send a ENDS0 request , eg:
$ dig @10.1.10.53 +subnet=205.168.2.3/32
The response should show
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096
; CLIENT-SUBNET: 205.168.2.3/32/0
;; QUESTION SECTION: