On Wed, Apr 9, 2014 at 1:09 PM, David C Lawrence <tale at akamai.com> wrote: > > Does anyone know of any FOSS resolvers that support the EDNS0 > Client-Subnet option, and uses it for caching? Unbound supports it on the edns-subnet branch: http://unbound.nlnetlabs.nl/svn/branches/edns-subnet/ -- dsp