Getting a network interface's multicast addresses in .NET on Ubuntu

Asked Oct 17 '22 at 11:10

Active Oct 17 '22 at 11:10

Viewed 43 times

I am trying to build an application in .NET 6 that can send wake-on-LAN magic packets.

I'm following this answer on Stack Overflow to implement this: https://stackoverflow.com/a/58043033/1992818

This works great on Windows, but doesn't work on Ubuntu, because the IPInterfaceProperties.MulticastAddresses property is empty.

The basic code is the following:

foreach (NetworkInterface networkInterface in NetworkInterface.GetAllNetworkInterfaces())
        {
            IPInterfaceProperties iPInterfaceProperties = networkInterface.GetIPProperties();

            // count will always be 0
            int count = iPInterfaceProperties.MulticastAddresses.Count;

        }

Is there a different way to get this working on Ubuntu from .NET?

asked Oct 17 '22 at 11:10

Daveoc64

1

Did you try this [answer](https://stackoverflow.com/a/65529803/12354911). It uses `BroadCastAddress` – Eldar Oct 17 '22 at 11:24
@Eldar That seems to work! A much simpler way of doing things. Would you like to submit that as an answer? – Daveoc64 Oct 17 '22 at 12:39
That would be a duplicate I think, but glad to help. – Eldar Oct 17 '22 at 13:14

Getting a network interface's multicast addresses in .NET on Ubuntu

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