Does EDNS0 work with bind-9.10.3-P2?

Mukund Sivaraman muks at
Tue Jan 5 15:08:10 UTC 2016

Hi Sury

On Tue, Jan 05, 2016 at 10:50:39PM +0800, Sury Bu wrote:
> I installed the latest version of bind-9.10.3-P2 but when I using dig
> EDNS feature with +subnet, I found my local DNS can not carry client
> subnet, does this version support EDNS0 now?

9.10 branch as no support for ECS except dig allowing +subnet to be
specified. There is no support in named.

master branch has prelimnary support for authoritative side of ECS, but
the draft is still not finalized and there are some differences from the
current draft.

There is no support currently for ECS in the resolver, either in the
cache or even to handle that option.

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