ipv4_netmask_suffix
The ipv4_netmask_suffix function returns the value of the IPv4 netmask suffix from IPv4 string address.
Private network addresses were originally defined to assist in delaying IPv4 address exhaustion. IP packets originating from or addressed to a private IP address cannot be routed through the public internet.
Syntax
ipv4_netmask_suffix( Expression )
Arguments
- Expression: A string expression representing an IPv4 address. Denote a subnet mask with a forward slash
/.
Results
- The value of the netmask suffix of the IPv4 address. If suffix is not present in the input, a value of
32(full netmask suffix) is returned. null: If parsing of the input as IPv4 address string wasn’t successful.
Examples
ipv4_netmask_suffix('192.168.1.1/24')returns as24ipv4_netmask_suffix('192.168.1.1')returns as32