Virtual Networking

VNET- Customer managed secure, isolated virtual network.

·        Services and VMs that are part of VNET can access each other.

·        Each VNET can have as many subnets

·        All services deployed within a VNET can access internet

Typed of VNETs

·        Cloud only VNET

o   When a VNET created in Azure

o   VMs and services access through endpoints.

o   No configuration of VPN device required.

·        Cross premise Virtual network(Hybrid network)

o   Connection of On-Premise network with the Cloud VNET through site to site tunnel.

o   Requires a VPN device.

VNet Address space and Subnet

o   Specify Topology during VNET creation: address space and subnet

o   Private address space

§  This is the range VMs and services can use

§  Non Routable(these can’t access by public network)

§  Specified in CIDR Notation (classless inter domain routing)

·        10.0.0.0/8: 10.0.0.0 to 10.255.255.255

·        172.16.0.0/12: 172.16.0.0 to 172.31.255.255

·        192.168.0.0/16:192.168.0.0 to 192.168.255.255

o   Subnet

§  Break up the network with more manageable sections.

§  All services can access across subnets.

§  Network security groups can be utilized to implement rules .