Construct from a given network start and number of bits (CIDR mask).
| Name | Description |
|---|---|
| addr [in] | Network start. Must be IPv4 or IPv6, otherwise an invalid subnet is created. |
| mask [in] | CIDR mask, must be in [0, 32]for IPv4 addresses and in [0, 128]for IPv6 addresses. Otherwise an invalid subnet is created. |