Is Public IPv4 (ispublic)

[ 1 Description ] [ 2 How does it work in the search window? ] [ 3 How does it work in LINQ? ]

Description

You can apply this operation either as a Filter or Create column operation:

Filter	Returns only the public IP addresses of a selected ip column.
Create column	Creates a Boolean column that shows true if a given IP address is public.

Public addresses range from 1 to 191, excluding the following blocks, which are reserved as private:

10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255

How does it work in the search window?

Select Filter / Create column in the search window toolbar, then select the Is Public IPv4 operation. You need to specify one argument:

Argument	Data type

Argument	Data type
IP to test ^mandatory	ip

If you use the Create column operation, the data type of the values in the new column is boolean (true or false).

Example

In the demo.ecommerce.data table, we want to get only the events where the IP addresses in the clientIpAddress column are public. To do it, we will apply a Filter using the Is public IPv4 operation.

The arguments needed for the filter are:

IP to test - clientIpAddress column

Click Filter data and you will see the following result:

To add a new Boolean column that shows true when the IP addresses in the clientIpAddress column are public, click Create column and follow the same steps.

How does it work in LINQ?

Use the operator where... to apply the Filter operation and select... as... to apply the Create column operation. This is the syntax for the Is Public IPv4 operation:

ispublic(ip)

Examples

You can copy the following LINQ script and try the above example on the demo.ecommerce.data table:

from demo.ecommerce.data
  where ispublic(clientIpAddress)

And this is the same example using the Create column operation:

from demo.ecommerce.data
  select ispublic(clientIpAddress) as public_ips