[Bug]: network.interfaces shows gateway as broadcast on Windows (with .NET older than 4.7.2)

[hurzhurz]

What happened?

When salt.utils.win_network uses WMI to get network interface information, it returns the gateway address as the broadcast address:

For example in this output from network.interfaces:

test-host:
    vmxnet3 Ethernet Adapter:
        ----------
        hwaddr:
            00:50:56:83:11:D5
        inet:
            |_
              ----------
              address:
                  10.153.30.240
              broadcast:
                  10.153.31.240
              label:
                  vmxnet3 Ethernet Adapter
              netmask:
                  255.255.252.0
        up:
            True

The address 10.153.31.240 obviously can't be the broadcast address, but is actually the gateway address:

>ipconfig /all

Ethernet-Adapter Ethernet:

   Verbindungsspezifisches DNS-Suffix:
   Beschreibung. . . . . . . . . . . : vmxnet3 Ethernet Adapter
   Physische Adresse . . . . . . . . : 00-50-56-83-11-D5
   DHCP aktiviert. . . . . . . . . . : Nein
   Autokonfiguration aktiviert . . . : Ja
   IPv4-Adresse  . . . . . . . . . . : 10.153.30.240(Bevorzugt)
   Subnetzmaske  . . . . . . . . . . : 255.255.252.0
   Standardgateway . . . . . . . . . : 10.153.31.240
   DNS-Server  . . . . . . . . . . . : 10.153.31.42
   NetBIOS über TCP/IP . . . . . . . : Aktiviert

So the expected output of network.interfaces would be:

test-host:
    ----------
    vmxnet3 Ethernet Adapter:
        ----------
        hwaddr:
            00:50:56:83:11:D5
        inet:
            |_
              ----------
              address:
                  10.153.30.240
              gateway:
                  10.153.31.240
              label:
                  vmxnet3 Ethernet Adapter
              netmask:
                  255.255.252.0
        up:
            True

Type of salt install

Official msi

Major version

3006.x

What supported OS are you seeing the problem on? Can select multiple. (If bug appears on an unsupported OS, please open a GitHub Discussion instead)

windows-2016

salt --versions-report output

Salt Version:
          Salt: 3006.19

Python Version:
        Python: 3.10.19 (heads/main:bdd4336, Jan  7 2026, 23:43:08) [MSC v.1944 64 bit (AMD64)]

Dependency Versions:
          cffi: 2.0.0
      cherrypy: 18.6.1
  cryptography: 42.0.5
      dateutil: 2.8.1
     docker-py: Not Installed
         gitdb: 4.0.7
     gitpython: Not Installed
        Jinja2: 3.1.6
       libgit2: Not Installed
  looseversion: 1.0.2
      M2Crypto: Not Installed
          Mako: Not Installed
       msgpack: 1.0.2
  msgpack-pure: Not Installed
  mysql-python: Not Installed
     packaging: 24.0
     pycparser: 2.21
      pycrypto: Not Installed
  pycryptodome: 3.19.1
        pygit2: Not Installed
  python-gnupg: 0.4.8
        PyYAML: 6.0.1
         PyZMQ: 25.0.2
        relenv: 0.22.2
         smmap: 4.0.0
       timelib: 0.2.4
       Tornado: 4.5.3
           ZMQ: 4.3.4

System Versions:
          dist:
        locale: utf-8
       machine: AMD64
       release: 2016Server
        system: Windows
       version: 2016Server 10.0.14393 SP0 Multiprocessor Free