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Jason_40733's avatar
Jason_40733
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Apr 08, 2011

GTM Topology Architecture with DNS resolvers

We are implementing GTM and have some general topology rules setup for routing our traffic. Something we have come across, is a potential need for us to route different groups of DNS clients that ar...
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Jason_40733's avatar
Jason_40733
Icon for Cirrocumulus rankCirrocumulus
Apr 11, 2011
That is a good document. It's something we've gone over. Our needs are a bit more in depth than that goes into. It appears that given the behavior of DNS, to accomplish what we wish to do we'll need to point anything that needs a more specific rule directly to the GTM. Which will eliminate part of our deployment simplicity gains by implementing GTM, but its not a huge difference.

 

 

So.... for a general topology set

 

subnet1 -> LDNS1 -> GTM

 

subnet2 -> LDNS1 -> GTM

 

subnet3 -> LDNS2 -> GTM

 

 

Will become this when more specific topology records are needed. It's either that or add more LDNS servers.

 

subnet1 -> LDNS1 -> GTM

 

subnet2 -> GTM

 

subnet3 -> LDNS2 -> GTM

 

 

With subnet2 being the subnet/IP address with specific topology needs.