forced to execute DNS64

Mark Andrews marka at
Tue Oct 11 05:13:32 UTC 2016

DNS64 doesn't work like that.

If you are having problems connecting over IPv6 contact your service
provider.  Facebook treats IPv6 as a production service and will
deal with connectivity issues.

If you want to force browsers to use IPv4 then send back RST to the
connection attempts to reach the facebook servers.  They should
fail over to using IPv4.  This should only require configuring the
firewall on your router appropriately.


In message <aac4f429ca6d4d1e86a98d8057f77b87 at skt-tnetpmx2.SKT.AD>, LEE SUKMOON 
> Hello, All.
> Many clients queries to IPv6(IN/AAAA) domain.
> But IPv6 network is so far, then slow then IPv4 network.
> I want to forced dns64 for special domain.
> Example, '' IN/AAAA address is '2a03:2880:f115:83:face:b00c:0:2
> 5de'.
> But I don't want to use IPv6 address. So I want to use dns64 translate addres
> s.
>         600     IN      CNAME   star-mini.c10r.facebook
> .com.
> 1351 IN    AAAA    2a03:2880:f115:83:face:
> b00c:0:25de
> Is it possible? Or should modify source?
> Thanks.
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Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at

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