netsh

type Interface interface {
	// EnsurePortProxyRule checks if the specified redirect exists, if not creates it
	EnsurePortProxyRule(args []string) (bool, error)
	// DeletePortProxyRule deletes the specified portproxy rule.  If the rule did not exist, return error.
	DeletePortProxyRule(args []string) error
	// EnsureIPAddress checks if the specified IP Address is added to specified interface, if not, add it.  If the address existed, return true.
	EnsureIPAddress(args []string, intName string, ip net.IP) (bool, error)
	// DeleteIPAddress checks if the specified IP address is present and, if so, deletes it.
	DeleteIPAddress(args []string) error
	// Restore runs `netsh exec` to restore portproxy or addresses using a file.
	// TODO Check if this is required, most likely not
	Restore(args []string) error
	// Get the interface name that has the default gateway
	GetDefaultGatewayIfaceName() (string, error)
	// Get a list of interfaces and addresses
	GetInterfaces() ([]Ipv4Interface, error)
	// Gets an interface by name
	GetInterfaceByName(name string) (Ipv4Interface, error)
	// Gets an interface by ip address in the format a.b.c.d
	GetInterfaceByIP(ipAddr string) (Ipv4Interface, error)
	// Enable forwarding on the interface (name or index)
	EnableForwarding(iface string) error
	// Set the DNS server for interface
	SetDNSServer(iface string, dns string) error
}

type Ipv4Interface struct {
	Idx                   int
	Name                  string
	InterfaceMetric       int
	DhcpEnabled           bool
	IpAddress             string
	SubnetPrefix          int
	GatewayMetric         int
	DefaultGatewayAddress string
	DNS                   string
}