From: Bob Chahal (bob.chahal@xxxxxxxxxxxx)
Date: Mon Aug 13 2001 - 20:08:00 GMT-3
Hi all,
I'm doing a real basic multicast lab but I just don't seem to be getting the
results I'm expecting. I've a hub and spoke frame-relay setup. R1 is the hub
and R2, R3 are the spokes. I've enabled the serial interfaces with PIM
dense-mode and have frame-relay maps (broadcast enabled) to every router.
Every router also has an ethernet to which I join multicast group 225.0.5.5.
When I ping the group address 225.0.5.5 from the hub only the local ethernet
responds. When I ping at the spokes only the local ethernet and the hub
respond. I was under the impression that dense-mode had no real issues.
I'm going to do some more research about issues with mulicasting and
frame-relay networks but if anyone has any ideas I'd appreciate it. Thanks.
the configs are as follows : -
R1
hostname r1
ip multicast-routing
ip dvmrp route-limit 20000
cns event-service server
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
no ip directed-broadcast
!
interface FastEthernet0/0
ip address 10.1.0.1 255.255.0.0
no ip directed-broadcast
ip pim dense-mode
ip igmp join-group 225.0.5.5
no keepalive
duplex auto
speed auto
!
interface Serial0/0
ip address 10.10.0.1 255.255.0.0
no ip directed-broadcast
ip pim dense-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
no ip mroute-cache
no fair-queue
frame-relay map ip 10.10.0.1 103
frame-relay map ip 10.10.0.2 102 broadcast
frame-relay map ip 10.10.0.3 103 broadcast
!
router ospf 1
network 0.0.0.0 255.255.255.255 area 0
!
R2
hostname r2
ip multicast-routing
ip dvmrp route-limit 20000
cns event-service server
!
interface Loopback0
ip address 2.2.2.2 255.255.255.0
no ip directed-broadcast
!
interface FastEthernet0/0
ip address 10.2.0.2 255.255.0.0
no ip directed-broadcast
ip igmp join-group 225.0.5.5
no keepalive
duplex auto
speed auto
!
interface Serial0/0
ip address 10.10.0.2 255.255.0.0
no ip directed-broadcast
ip pim dense-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
no ip mroute-cache
no fair-queue
frame-relay map ip 10.10.0.1 201 broadcast
frame-relay map ip 10.10.0.2 201
frame-relay map ip 10.10.0.3 201 broadcast
!
router ospf 1
network 0.0.0.0 255.255.255.255 area 0
!
R3
hostname r3
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
no ip directed-broadcast
ip ospf interface-retry 0
!
interface Ethernet0
ip address 10.3.0.3 255.255.0.0
no ip directed-broadcast
ip ospf interface-retry 0
ip igmp join-group 225.0.5.5
no keepalive
!
interface Serial0
ip address 10.10.0.3 255.255.0.0
no ip directed-broadcast
ip pim dense-mode
encapsulation frame-relay
ip ospf network point-to-multipoint
ip ospf interface-retry 0
no ip mroute-cache
no fair-queue
frame-relay map ip 10.10.0.1 301 broadcast
frame-relay map ip 10.10.0.2 301 broadcast
frame-relay map ip 10.10.0.3 301 broadcast
!
router ospf 1
network 0.0.0.0 255.255.255.255 area 0
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