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Robert_184589's avatar
Robert_184589
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May 19, 2015

GTM Split-Brain DNS Setup

I'm trying to setup a F5/GTM/LTM server that is a virtual appliance. I have two data centers one for Production and one for DR. This would be a active/passive setup to some degree.   The ISP con...
BIG-IP DNS
deployment
virtual appliance
Robert_184589's avatar
Robert_184589
Icon for Nimbostratus rankNimbostratus
Jun 02, 2015

So in case anyone else comes along and looks at this. Here is the answer.

 

The trick is to have multiple virtual servers configured on the LTM say

 

domain.com_internal = 192.168.100.2

 

domain.com_external = 208.x.x.2

 

Both use the same pool of servers and health monitors.

 

Then you have to go to DNS>GSLB>Pools and create a Pool one with the external virtual servers and the other with the internal virtual servers. The pools should reflect the difference as well.

 

Then follow these instructions when using the F5 to resolve DNS. https://support.f5.com/kb/en-us/solutions/public/14000/400/sol14421.html

 

Works like a champ.

 

thanks,

 

Robert