"Unknown data type" error when modifying IPV6 Setup object

Hi,

Thank you for your great library and for open sourcing it.

I'm currently running a proof-of-concept and I'm trying to modify the IPV6 Configuration of a meter using your GXDLMSDirector connected to the meter's optical head port.

I can connect to the meter and get the list of all the objects, great!

Then I read the content of the IPv6 Setup object "0.0.25.7.0.255" which allows me to get the content of all the attributes.

See the result here:

https://imgur.com/a/ES28QiB

I want now to modify the Gateway Addresses list, so I click in the TextBox, edit, click outside the TextBox and then I get an exception:

https://imgur.com/a/KbocAE5

The exception is raised because the code doesn't handle the type "System.Net.IPAddress[]" in the function "static public DataType GetDLMSDataType(Type type)" of GXCommon.cs which is called by "public static void DatatoXml(object value, GXDLMSTranslatorStructure xml)" from the same file. This last function can handle IPAddress but not arrays of them.

I tried modifying the DatatoXml function to also handle IPAddress[] in a similar fashion as the GXArray type but my modification ended-up creating more issues (invalid xml error).

Could you please have a look at this issue or guide me on how I can fix it myself?

Best regards,

Christophe