Re: [lwip-users] igmp status? versions?

[Leon Woestenberg]

Hello Jim,

Jim Gibbons wrote:
> There is an open bug on IGMP integration, with a note indicating that 
> the code contributed by Steve Reynolds would be used.  Does anyone know 
> the status of this?
>
> I am unfamiliar with typical practices in the use of IGMP.  Will v2 only 
> be good enough?  That is, will it be OK to exclude v1 and v3?
Yes and no. I was planning on integrating Steve's implementation, then
refactor the code so that v3 support can be added.

v2 allows to join multicast groups (defined by their destination address)

v3 additionally allows to join source-specific multicasting (based
on source and destination).

I think v3 adds positive and negative filtering, which is the most
intrusive change.

Because we are not planning to use IGMP anytime soon, the status on 
Savannah is obsolote on this issue; I do not have the time to start work 
on this.

Regards,

Leon.