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Old 06-11-2019, 02:24 PM   #1
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Registered: Jun 2019
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HOWTO have interface join new IPv6 link-local multicast address?

I would like an interface on a Linux host to join a new IPv6 link-local multicast address, say, FF02:0:0:0:0:0:1:8. How do I do that?

Do we have a configuration knob or do I have to change any linux kernel/user code to get this done?

For example, as per RFC 4862, during initialization, a network interface joins the IPv6 all-nodes link-local address. I would like the interface to also join my new link-local multicast address during initialization.


Old 06-12-2019, 05:45 AM   #2
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A Linux user-space application can get this done using IPV6_JOIN_GROUP. The socket option is defined in the RFC below.



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