rfc-7871

Client Subnet in DNS Queries

C. Contavalli, W. van der Gaast, D. Lawrence, W. Kumari

date2016-05 streamIETF areaops wgdnsop statusINFORMATIONAL pages30 canonicalhttps://www.rfc-editor.org/rfc/rfc7871 doi10.17487/RFC7871 errataview

This document describes an Extension Mechanisms for DNS (EDNS0) option that is in active use to carry information about the network that originated a DNS query and the network for which the subsequent response can be cached. Since it has some known operational and privacy shortcomings, a revision will be worked through the IETF for improvement.