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DNS response based on source network address

Expert
Posts: 38
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we have a mainframe system with 3 different ip addresses x.x.x.5, x.x.x.6, x.x.x.7 there is an alias configured for this host. We need DNS to respond with x.x.x.5 if the request came from y.y.y.20 and respond with x.x.x.6 if the request came from z.z.z.50

Is there a way to configure this w/o use of DNS views?

Re: DNS response based on source network address

manoj
Techie
Posts: 11
6743     0
Please refer short list feature in NIOS that might help you

Thanks,
Manoj Devpura
Technical Support Engineer
Infoblox | Business Agility through Network Automation
(T) +1-408-986-5699
mdevpura@infoblox.com | www.infoblox.com<>

Re: DNS response based on source network address

Expert
Posts: 38
6743     0
Not sure I understand your reply. Could you be more specific if there is a way to do the configuration?

Re: DNS response based on source network address

manoj
Techie
Posts: 11
6743     0
Check "DNS Traffic Control" section from admin guide. This is a new feature where you can adjust DNS responses based on DNS query source IP, server availability, and network topology. Through DNS Traffic Control, you can set up multiple global sites and configure supported objects and load balancing methods to direct DNS clients to the best available servers. To use this feature, you need install the DNS Traffic Control license on designated members.

Thanks,
Manoj Devpura
Technical Support Engineer
Infoblox | Business Agility through Network Automation
(T) +1-408-986-5699
mdevpura@infoblox.com | www.infoblox.com<>

Re: DNS response based on source network address

Expert
Posts: 232
6743     0

Have a look at grid DNS properties, toggle advanced mode and select "sort list". Add a source address of y.y.y.20 and the specify the prioritised network x.x.x.5/32, then add a second source address of z.z.z.50 and a prioritised network of x.x.x.6/32.

 

No guarantees this will work, you might need to play with it a bit with some test addresses, e.g. you might need to add the other address as a second network for the sorting to work and then tweak the order to get it to sort them in the correct order based on source IP.

 

Or you could try DTC but you'll need to purchase a license for that.

Paul Roberts
PCN (UK) Ltd

All opinions expressed are my own and not representative of PCN Inc./PCN (UK) Ltd. E&OE
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