Dear David and Takashi,
Thank you very much. I made the change and it works :D
Best regards, Patcharee David Stevens wrote:
If you want to force it to be MLDv1 in all cases, you can change the definition of the MLD_V1_SEEN macro in net/ipv6/mcast.c to:
#define MLD_V1_SEEN(idev) (1)
That hack will make your machine always believe it has seen an MLDv1 querier.
+-DLS