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can n2n support UDP multicast #1163

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heli-boop opened this issue Dec 25, 2023 · 4 comments
Open

can n2n support UDP multicast #1163

heli-boop opened this issue Dec 25, 2023 · 4 comments

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@heli-boop
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heli-boop commented Dec 25, 2023

thanks for your great work! I want to know n2n 3.0 is support udp multicast

@Logan007
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I want to know n2n 3.0 is support udp multicast

If I remember correctly, n2n is able to handle multicast packets. But they are dropped by default. -E at the edges lets them accept these packets. n2n network-wide, multicast is treated like broadcast so they are forwarded to every edge which then needs to filter itself.

@heli-boop
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I want to know n2n 3.0 is support udp multicast

If I remember correctly, n2n is able to handle multicast packets. But they are dropped by default. -E at the edges lets them accept these packets. n2n network-wide, multicast is treated like broadcast so they are forwarded to every edge which then needs to filter itself.

I use udp multicast in java,and start edge service with E;but still not receive udp package

@heli-boop
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heli-boop commented Jan 16, 2024

I want to know n2n 3.0 is support udp multicast

If I remember correctly, n2n is able to handle multicast packets. But they are dropped by default. -E at the edges lets them accept these packets. n2n network-wide, multicast is treated like broadcast so they are forwarded to every edge which then needs to filter itself.

I’m sorry for the inconvenience. If I start with the “-E” parameter on the edge node, what should I fill in for the multicast address when I send a multicast?

@Logan007
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Any multicast address (to which your application is interested in) should work. The multicast on virtual network adapter should work just as a with a regular network adapter.

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