How to enable EDNS for an authoritative name server?

Jackie Lui jackie9 at gmail.com
Thu Jan 22 07:25:38 UTC 2015


I have installed bind 9.10.1 and enable GeoIP features. This works fine
except the EDNS feature.

When I dig Google DNS server with +subnet parameter, Google DNS server can
respond the CLIENT-SUBNET value. However, when I dig my DNS server, it
can't show the CLIENT-SUBNET value. It seems that my server cannot
handle ECS query?

Is there any step I missed to enable EDNS feature?

Thanks.
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