do have a good reference for multicast routing on DMVPN?
yesterday night, i did a multicast fordwarding test on dmvpn by using V5 INE topology on GNS3. by capturing some packets, i found , it seemed like enapasolation on thunel interface is messy . i've seen
1. gre with the source of underlay ip (169.x.x.x)and dest with group address (188.8.131.52) . 150.1.0.x----184.108.40.206 inside
2. normal packet with 169.x.x.x 220.127.116.11
3. even seen ip +gre +IP + gre +ip strange pakcets
but there is no spoke-spoke pakcet with overlay 150.x.x.x to overlay 150.x.x.x
one thing to garantee is that multicast never trigger spoke-spoke tunnel to be set up.
seems like nobody taught about this part of knowledge.