Azure Address Spaces

Regarding Azure Address spaces. How is it possible to have one range of 10.x.x.x and another of 192.10.5.x in the same vnet? Little confused over this concept.
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compdigit44Asked:
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MaheshArchitectCommented:
No they are not in same VNet

Because when you create one azure network address space (say 10.10.0.0/16), you can create / divide it further in super netted fashion like 10.10.1.0/24, 10.10.1.128/25 etc
But here you cannot add 192.10 series
What ou can do, you can add another address space (VNet) starting from 192.10.0.0/16 or whatever

Now as per Microsoft design, these two subnets by default can communicate with each other and there is default route available between two
So you can't have these two separate range in same VNet but both Vnets can talk to each other as being azure VNets which allows Vnet to Vnet internal communication by default
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compdigit44Author Commented:
Ok I think I have a little better understanding. THe part that is still tripping me up is the difference between a Address Space and Subnet
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MaheshArchitectCommented:
Address space resembles to entire network ID
As far as I know, you can change azure VM subnet in same address space easily but not between two VNets
If you do so, u need to delete VM while keeping virtual hard drive and create new VM in new VNet by attaching same HDD again
There is no simple way available
This is situation at least year back
Now I think they have come up with something called network peering for easy VM movement between vnets but I have not came across
Now to come up on latest question u posted:
Address space is just like reserving entire network id like 10.10.0.0/16 and then distribute it within several small subnets like super netting so you can switch between subnets in same address space
The purpose of having subnets is to define network boundaries so that you can define network security groups (NSG) which can be used to define restrictions on network level
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