[openib-general] IPv6 multicast address per NIC

[Or Gerlitz]

Hi,

I see that when IPv6 is enabled in the kernel, the stack joins for a 
--dedicated-- multicast group per each interface. Can anyone here supply 
me with a pointer to where this is defined, doing a quick look on rfc 
3307 did not provide an answer.

Or.

Below is the maddr show on a node with two partitions on ib0, note that 
the --pkey-- is not presented in the link addresses since IPoIB fill 
that in its own copy (i don't mind send a patch to fix that if anyone 
here think it is helpful).

$ ip maddr show

> 41:     ib0
>         link  00:ff:ff:ff:ff:12:40:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:01:ff:98:00:6d
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         inet  224.0.0.1
>         inet6 ff02::1:ff98:6d
>         inet6 ff02::1
> 45:     ib0.8001
>         link  00:ff:ff:ff:ff:12:40:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:01:ff:98:00:6d
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         inet  224.0.0.1
>         inet6 ff02::1:ff98:6d
>         inet6 ff02::1
> 46:     ib0.8003
>         link  00:ff:ff:ff:ff:12:40:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:01:ff:98:00:6d
>         link  00:ff:ff:ff:ff:12:60:1b:00:00:00:00:00:00:00:00:00:00:00:01
>         inet  224.0.0.1
>         inet6 ff02::1:ff98:6d
>         inet6 ff02::1
>