Hi All,
I am trying to get IPv6 multicast working over a GRE tunnel, but am having issues. My connection is below:
R0 -----R1------R6
R0 and R6 support IPv6 multicast routing, but R1 does not. I set up a tunnel between R0 and R6 with the following addresses:
R1: 2001:6:6:6::1
R6: 2001:6:6:6::6
Both R1 and R6 have vlan 1 with address space:
R1: 2001:470:8:E02::/64
R6: 2001:470:E455:3000::/64
The tunnel is up and I can ping the address from one vlan to another. I have the following for show ipv6 pim neighbor:
R1:
PIM Neighbor Table
Mode: B - Bidir Capable, G - GenID Capable
Neighbor Address Interface Uptime Expires Mode DR pri
FE80::21E:F7FF:FE58:B2C9 Tunnel6 3d15h 00:01:31 B G DR 1
R6:
PIM Neighbor Table
Mode: B - Bidir Capable, G - GenID Capable
Neighbor Address Interface Uptime Expires Mode DR pri
FE80::21E:7AFF:FEE4:EA4E Tunnel6 3d15h 00:01:25 B G 1
Here's my question/issue:
I can setup #ipv6 mld join-group ff07::2 on R6 vlan1 and ping from R1 without issue as long as I specify the outgoing interface as Tunnel6. I have a client on R1 in vlan1 and the multicast packets are not making it to R6. I have tried setting up static mroutes, but I am not sure I am doing them correctly. I have tried:
From R1: ipv6 router ::/0 tunnel6 multicast
No differencr is behavior
R1 #sh ipv6 rpf 2001:6:6:6::6
RPF information for 2001:6:6:6::6
RPF interface: Tunnel6
RPF neighbor: 2001:6:6:6::6- directly connected
RPF route/mask: 2001:6:6:6::/64
RPF type: Unicast
RPF recursion count: 0
Metric preference: 0
Metric: 0
R6 #sh ipv6 rpf 2001:6:6:6::1
RPF information for 2001:6:6:6::1
RPF interface: Tunnel6
RPF neighbor: 2001:6:6:6::1- directly connected
RPF route/mask: 2001:6:6:6::/64
RPF type: Unicast
RPF recursion count: 0
Metric preference: 0
Metric: 0
Sorry for the long post, but this driving me crazy. I looked in Vol1 worrkbook, I didn't see an example of this. Thanks.
Jon