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Hands-On Networking with Azure by Mohamed Waly

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Azure VNet key points

While building your virtual network, you might need to consider the following points:

  • You cannot add the following address spaces to your virtual network:
    • 224.0.0.0/4 (multicast)
    • 255.255.255.255/32 (broadcast)
    • 127.0.0.0/8 (loopback)
    • 169.254.0.0/16 (link-local)
    • 168.63.129.16/32 (internal DNS)
  • You cannot connect virtual networks that have overlapped address spaces
  • As a default limit, you can create 50 virtual networks per region per subscription, but it can be increased up to 1,000 virtual networks if you contact support
  • As a default limit, you can create 1,000 subnets per virtual network, but it can be increased up to 10,000 subnets, if you contact support
  • As a default limit, you can have 4,096 private IPs per virtual ...

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