HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual page 588

Configuring Multicast Support with PIM-SM
Troubleshooting PIM-SM
Default route is not
sufficient.
11-60
This table must include an explicit route to the RP or source (depending
on the type of entry) in order for the router to determine the incoming
interface for an multicast entry. You must either enable a routing protocol
on the router or configure a static route to each RP and network that may
include a multicast source. If your router runs OSPF, it must receive
summary routes, not simply a default route. See Chapter 13: IP Routing—
Configuring RIP, OSPF, BGP, and PBR for more information.
ProCurve# show ip route
Codes: C - connected, S - static, R - RIP, O - OSPF, B - BGP
IA - OSPF inter area, N1 - OSPF NSSA external type 1
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1
E2 - OSPF external type 2
Gateway of last resort is 10.2.2.2 to network 0.0.0.0
O IA 0.0.0.0/0 [110/50] via 10.2.2.2, ppp 1
C 10.2.2.0/30 is directly connected, ppp 1
C 10.2.2.2/32 is directly connected, ppp 1
C 192.168.64.0/24 is directly connected, eth 0/1
C 192.168.65.0/24 is directly connected, eth 0/2
The RP is 10.1.1.2. (See Figure
11-24.) The table does not
include an explicit route to
this address.
Figure 11-26.Looking for a Route to the RP in the Unicast Routing Table
7. If the incoming and outgoing interfaces for the multicast routing table
entry seem correct, then you should verify that the router is sending joins
to its upstream neighbors as it should. You can determine whether the
router has established contact with a neighbor using this command:
ProCurve# show ip pim-sparse neighbor
If a neighbor is not present in the list, the connection to that neighbor may
be down. Troubleshoot a WAN connection as described in Chapter 6:
Configuring the Data Link Layer Protocol for E1, T1, and Serial Inter-
faces in the Basic Management and Configuration Guide. If the connec-
tion is good, you can try raising the neighbor timeout or returning it to its
default.