Subject: PIM-DVMRM interaction problem

From: [email-masked]
Date: Mon, 8 Jan 1996 05:06:12 +0300

Hi!

I try to configure pim & dvmrp on cisco (11.0.4):

	   ! PIM to local networks
        E1 ! & unicast default
     -----------                          ------------   !
     !  cisco  !  DVMRP tunnel to         !           !  !
     !         !--------------------------!Mrouted 3.8!--!193.232.122.21
     ! 4000    !   remote network         !           !  !
     ----------                           ------------   !
      E0 !PIM to mbone
         !& multicast default
         !

cisco configs:
...
ip multicast-routing
interface Tunnel0
 ip unnumbered Ethernet1
 ip pim dense-mode
 ip multicast ttl-threshold 1
 ip dvmrp default-information originate
 tunnel source Ethernet1
 tunnel destination 193.232.122.21
 tunnel mode dvmrp
!
interface Ethernet0
 ip address 194.85.112.58 255.255.255.0
 ip pim dense-mode
!
interface Ethernet1
 ip address 193.232.127.62 255.255.255.248
 ip pim dense-mode
!
ip mroute 0.0.0.0 0.0.0.0 194.85.112.46
ip mroute 193.232.122.0 255.255.255.0 Tunnel0
!
Result is :
    1. All group treat as connected :

    (*, 224.2.0.1), 00:50:47/0:02:54, RP 0.0.0.0, flags: DC
      (128.138.213.1/32, 224.2.0.1), 00:49:33/0:00:34, flags: CT
      (128.182.61.159/32, 224.2.0.1), 00:49:30/0:00:19, flags: CT
      (128.250.116.56/32, 224.2.0.1), 00:49:33/0:00:07, flags: CT
    
    2. Tunnel never prune, but according logs mrouted send and cisco
    receive it.
    Mrouted log:
     sent prune for (default 224.0.1.11)/509 on vif 1 to 193.232.127.62
    Cisco debug:
     DVMRP: Received Prune on Tunnel0 from 193.232.122.21for (0.0.0.0, 224.0.1.11)

    3. RPF for tunnel destination look strange :

  (193.232.122.21/32, 224.2.0.1), 00:17:26/0:02:06, flags: CT
  Incoming interface: Tunnel0, RPF nbr 74.252.74.252, Mroute
  Outgoing interface list:             ^^^^^^^^^^^^^^
    Ethernet0, Forward/Dense, 00:17:26/0:00:13
    Ethernet1, Prune/Dense, 00:17:26/0:01:11

Any ideas / advisory?

Thanks