It is for rf radio traffic. Srx1 site receives signal and multicasts it out
to other sites (srx2, and srx3, etc), other sites receive multicast and
need to be able to respond with multicast back to srx1 site - the same way.
I am completely open to testing it the way you are thinking... Let's see if
I am getting this right: srx1 site gets signal and multicasts it out in
group 225.0.0.1, srx2 and srx3 sites receive and are able to respond back
to srx1 site via multicast group 225.0.0.2.
If I am understanding right, a multicast group per direction of traffic? If
that would work, that would be great!