net.ipv4
Parse, format and check dotted-quad IPv4 addresses, refusing leading zeros, octal, hex and short forms.
A group of 3:
parse_ipv4, format_ipv4, is_ipv4Tagged network
4 capabilities
net.cidr
CIDR blocks: network, broadcast, first and last host, host count, netmask and prefix, and membership.
A group of 5:
cidr_info, cidr_contains, is_cidr, prefix_to_netmask, netmask_to_prefix
net.port
Check a TCP/UDP port number and name the IANA service registered on it, with its system/user/dynamic range.
A group of 2:
is_port, port_service
net.device-validate
Validate one network inventory entry: name, host, ports, optional MAC and subnet, with every problem listed.
validate_device in Python