IGMP/MLD monitoring

Question

IGMP/MLD monitoring

lars18th opened this issue 3 years ago · 4 comments

Hi,

I need to know if I could do a monitoring of IGMP/MLD messages (joins/leaves to groups) using the mcjoin tool. Or if I can do this with another tool. My objective is to start/stop some scripts based on the group state.

Thank you.

Answer 1 · 2022-01-13T13:19:18.000Z

Nope, that's not what mcjoin does. In fact, it does not do any IGMP/MLD join/leave at all but via socket options ask the kernel to receive/not-receive multicast groups. You could try scripting tcpdump/tshark instead.

Answer 2 · 2022-01-13T18:40:43.000Z

Hi @troglobit ,

You could try scripting tcpdump/tshark instead.

Thank you for the response. Any idea or guide about how to do it?

Answer 3 · 2022-01-14T11:43:18.000Z

I'm sure there are lots of people out there more competent than I wrt these programs and how to script them. Respectfully, it is also not my responsibility as maintainer of this project to help you with that.

Answer 4 · 2022-01-14T14:26:33.000Z

OK, @troglobit .

Don't worry. I'm only searching for help about this.
Thank you.