(usagi-users 03381) MLDv2 linux implementation questions

Hi,

I am doing some tests on the MLDv2 linux implementation (2.6.11 kernel).
I have two questions :

- How do I check the MLD version running on my host ?


On a link with MLDv2, I am joining and leaving the same SSM channel  and
I am checking
the status of /proc/net/igmp6 to see the state if has effectively
joined/leaved the
channel here is the ouput :

a).Joining (S,ff3e::1234), using JOIN_SOURCE setsocktopt option :

3    ath0            ff3e0000000000000000000000001234     1 00000004 0

b)Leaving(S, ff3e::1234), using LEAVE_SOURCE setsockopt option :

3    ath0            ff3e0000000000000000000000001234     1 00000017
<decreasing timer>

and then

3    ath0            ff3e0000000000000000000000001234     1 00000016 0

c)Joining (S,ff3e::1234), using JOIN_SOURCE setsocktopt option :

3    ath0            ff3e0000000000000000000000001234     2 00000016 0

d)Leaving(S, ff3e::1234), using LEAVE_SOURCE setsockopt option :

The same as b)

a).Joining (S,ff3e::1234), using JOIN_SOURCE setsocktopt option :

3    ath0            ff3e0000000000000000000000001234     3 00000016 0


Could someone explain this  behavior ? What's the "16" flag ?The 4th
field is increasing each time I leave and join a ssm channel on the same
socket is it the expected behavior ?

Thanks,

Hoerdt Mickaël