Recognizing remote IP in shared connections

[Alberto Colosi]

sorry, let me only to add a comment to previous mail


if who make the query use a DNS Forwarding System (like use ISP DNS as forwarders or direct resolver) you'll only have ISP DNS on last forward action



________________________________
From: bind-users <bind-users-bounces at lists.isc.org> on behalf of Job <Job at colliniconsulting.it>
Sent: Tuesday, February 28, 2017 2:35 PM
To: bind-users at lists.isc.org
Subject: Recognizing remote IP in shared connections

Hi,

for policies purpuose, we need to know which remote site is resolving a Bind 9.x public DNS Server.
The problem occurs when some carriers "share" the same IP address between more customers and they surf behind a shared NAT.

Is there a way? Perhaps with DNS crypt o dnssec?

Thank you!
/F
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