To have the router join a multicast group, use the ip igmp join-group interface configuration command
I feel that the above quote is inconsistent with the what I have read recently in the quote below :
igmp join-group is not needed to enable hosts on a segment to receive multicast traffic. If a host on a segment wants to receive traffic for a particular multicast group the host will respond to the router?s IGMP query messages or send an unsolicited IGMP report message.
You are having problems with multicast lately, right?
ok, I dont see any problems with the first quote.
You really dont need to make the router joing the multicast group in order to make your multicast network work.
I usually use that command for testing purpose, as usually my LAB is only based on devices not hosts I need a way to test it. Then I use the command ip igmp join-group x.x.x.x command to make the router respond to my pings to the multicast IP.
The join-group command forces the router to respond "as a host" on its own interface.
It's not closely "necessary" for your multicast network, normally it's used only for testing purpose (to "simulate" an host that joins a specific multicast group when you haven't that but you need to check your multicast topology).
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.