I have to get some multicast traffic across a non multicast network, and have had a suggestion I use DVMRP tunnels. The site routers are 3750, so no GRE,.
Try as I might, I don't seem to get it working - I don't think the tunnel it establishing properly , a sh int shows nothing in or out. A debug ip pack with an access list to the tunnel destination shows nothing.
sh int tu0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Interface is unnumbered. Using address of Vlan512 (10.50.12.11)
MTU 9112 bytes, BW 100 Kbit, DLY 50000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 10.50.99.11 (Loopback0), destination 10.50.99.10
Tunnel protocol/transport IP/IP (DVMRP)
Tunnel TTL 255, Fast tunneling enabled
Tunnel transport MTU 1480 bytes
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
IOS is 12.2(50)se.
Any suggestions about what I have wrong?