[ask] How To configure/activate igmpv3 and MLDv2 protocol for IPv6?

[supermanisdeady]

hello guys, i'm confusing how to config and activate igmpv3 and MLDv2 protocol for IPv6 at ubuntu?
i found much related about this but not details like i think and i want...

is possible use xorp launchpad.net/ubuntu/lucid/+source/xorp to handle this?
and i'm not success when use this tutorial advenage.com/topics/change-IGMP-version-on-debian-linux.php

help me...

[supermanisdeady]

hmhhh, anyone can help me? is igmpv3 default active for ipv6?

[digitalsushi]

hmhhh, anyone can help me? is igmpv3 default active for ipv6?

If you have a linux kernel that supports it, you should have all that you need. You don't assign a multicast address to an interface such as a normal unicast address. Applications will join a group on the multicast address when they need access to it.

For example VLC is a media player with multicast streaming support. On a media PC, maybe you blast the LAN with an mp3 file looping over UDP on v4 address 224.0.0.1, or IPv6 address ff08::1.

Then other clients on your lan can all tune in to those addresses and basically 'subscribe' to the source. Maybe you have some multicast routers in between layer 2 networks, or just run a flat layer 2 network on a home/soho LAN.

IGMPv3==MLDv2, and yeah I just captured some MLDv2 packets in order to prove this to myself by doing an experiment with vlc.

[supermanisdeady]

If you have a linux kernel that supports it, you should have all that you need. You don't assign a multicast address to an interface such as a normal unicast address. Applications will join a group on the multicast address when they need access to it.

yes i did, i was knew several time ago about it...

For example VLC is a media player with multicast streaming support. On a media PC, maybe you blast the LAN with an mp3 file looping over UDP on v4 address 224.0.0.1, or IPv6 address ff08::1.

i'm using the SDR(session directory tool) to make a multicast session and make the multicast address, and i am use RAT(robust audio tool) to try the multicast...

Then other clients on your lan can all tune in to those addresses and basically 'subscribe' to the source. Maybe you have some multicast routers in between layer 2 networks, or just run a flat layer 2 network on a home/soho LAN.

oh... so like that?

IGMPv3==MLDv2, and yeah I just captured some MLDv2 packets in order to prove this to myself by doing an experiment with vlc.

and like my question before, so how to activate the both of protocol? or both of them is default activated, and how to captured the packet? can we use wireshark or something?

[digitalsushi]

yes i did, i was knew several time ago about it...
oh... so like that?

and like my question before, so how to activate the both of protocol? or both of them is default activated, and how to captured the packet? can we use wireshark or something?

so the way i did it was fire up wireshark and listen to your interface, then i used vlc to source the music and another vlc to listen to it. i got a bunch of igmp and mld/icmpv6 packets.

[digitalsushi]

i'm not sure what you're asking otherwise, so explain further if you need direction from me.

[supermanisdeady]

i'm not sure what you're asking otherwise, so explain further if you need direction from me.

hmhhh... just asking this... how to enable the mldv2 protocol? and then how to test it if the protocol is run on the system or not...

[digitalsushi]

hmhhh... just asking this... how to enable the mldv2 protocol? and then how to test it if the protocol is run on the system or not...

Run 'ip -6 maddr show'

If you see ff02 addresses, you're running v6 multicast.

[supermanisdeady]

Run 'ip -6 maddr show'

If you see ff02 addresses, you're running v6 multicast.

this is the result

newubuntu@newubuntu-laptop:~$ ip -6 maddr show
1: lo
inet6 ff02::1
2: eth0
inet6 ff02::1:ff00:1
inet6 ff02::2
inet6 ff02::1
3: wlan0
inet6 ff02::1:ff00:0
inet6 ff02::1:ff4d:a033
inet6 ff02::1
4: vboxnet0
inet6 ff02::1
5: pan0
inet6 ff02::1

but not like that, i just want to know "how to enable/how to activated" the MLDv2 protocol not "how to see the ipv6 multicast address on interfaces"

[digitalsushi]

It's on. You just showed it's on. That's it. You have no further work to do.