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DNS on the BIG-IP: IPv6 to IPv4 Translation

I've been writing some DNS articles over the past couple of months, and I wanted to keep the momentum going with a discussion on IPv6 translation.  As a reminder, my first four articles are: Let'...
Published May 29, 2014
Version 1.0
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Mihir_Joshi's avatar
Mihir_Joshi
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Sep 20, 2017

Hi,

 

I have a question.

 

Is it compulsory to enable option "DNS IPv6 to IPv4" if we host IPv6 listener on BIG-IP DNS (GTM)?

 

We are experiencing strange issue. User belong to one of the Europe region not able to connect application when they connect from their home Wi-Fi which have IPv6 addresses enabled.

 

On GTM we have IPv6 listener and IPv4 listener which shares same DNS profile which enabled with option "DNS IPv6 to IPv4" (Secondary). Because of this end user receives two records in IPv6 addresses in format of "::xxx.xxx.xxx.xxx".

 

Do you think this could be a reason for issue we are currently experiencing?

 

When we ask client to change their IP schema from IPv6 to IPv4 it works perfectly fine.

 

Regards,

 

Mihir