From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Wed Dec 07 2005 - 22:06:56 GMT-3
I set up three routers in the spoke network with R1 being the hub with R2 and
R3 being the spokes. I am using Auto-RP, where the mapping agent is R1, and
R2 is configured as the only RP. I let all three routers join the 224.4.4.4
group on each ethernet interface. When I ping the the group from each router,
I get all the responses back from R1 and R2....but for R3 only the local
router and R1 respond to the pings. Is this the correct behaviour, or, am I
missing something?
See below....
R1.......
ip multicast-routing
!
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip pim sparse-mode
!
interface FastEthernet0/0
ip address 10.1.1.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 224.4.4.4
duplex auto
speed auto
!
interface Serial0/0
no ip address
ip pim nbma-mode
ip pim sparse-mode
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial0/0.1 multipoint
ip address 172.16.1.1 255.255.255.0
ip pim nbma-mode
ip pim sparse-mode
frame-relay map ip 172.16.1.3 103 broadcast
frame-relay map ip 172.16.1.1 102
frame-relay map ip 172.16.1.2 102 broadcast
no frame-relay inverse-arp
!
router ospf 1
router-id 255.255.255.255
log-adjacency-changes
network 172.16.1.0 0.0.0.255 area 0
neighbor 172.16.1.2
neighbor 172.16.1.3
!
ip pim autorp listener
ip pim send-rp-discovery Loopback0 scope 16
!
!
R2.....
ip multicast-routing
!
!
!
interface Loopback0
ip address 2.2.2.2 255.255.255.0
ip pim sparse-mode
!
interface Ethernet0
ip address 20.1.1.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 224.4.4.4
!
interface Serial0
ip address 172.16.1.2 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 172.16.1.3 201
frame-relay map ip 172.16.1.1 201 broadcast
frame-relay map ip 172.16.1.2 201
no frame-relay inverse-arp
!
router ospf 1
log-adjacency-changes
redistribute connected subnets
network 172.16.1.0 0.0.0.255 area 0
!
ip pim send-rp-announce Loopback0 scope 16
!
R3......
ip multicast-routing
!
!
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip pim sparse-mode
!
interface Ethernet0
ip address 30.1.1.1 255.255.255.0
ip pim sparse-mode
ip igmp join-group 224.4.4.4
!
interface Serial0
ip address 172.16.1.3 255.255.255.0
ip pim sparse-mode
encapsulation frame-relay
ip ospf priority 0
frame-relay map ip 172.16.1.3 301
frame-relay map ip 172.16.1.1 301 broadcast
frame-relay map ip 172.16.1.2 301
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
router ospf 1
log-adjacency-changes
redistribute connected subnets
network 172.16.1.0 0.0.0.255 area 0
network 192.168.1.0 0.0.0.255 area 10
Here are the ping results.....
R1#ping
Protocol [ip]:
Target IP address: 224.4.4.4
Repeat count [1]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.4.4.4, timeout is 2 seconds:
Reply to request 0 from 10.1.1.1, 4 ms
Reply to request 0 from 172.16.1.3, 116 ms
Reply to request 0 from 172.16.1.2, 104 ms
Reply to request 0 from 1.1.1.1, 4 ms
R2#ping
Protocol [ip]:
Target IP address: 224.4.4.4
Repeat count [1]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.4.4.4, timeout is 2 seconds:
Reply to request 0 from 20.1.1.1, 20 ms
Reply to request 0 from 172.16.1.3, 192 ms
Reply to request 0 from 172.16.1.1, 168 ms
Reply to request 0 from 2.2.2.2, 24 ms
R3#ping
Protocol [ip]:
Target IP address: 224.4.4.4
Repeat count [1]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.4.4.4, timeout is 2 seconds:
Reply to request 0 from 30.1.1.1, 20 ms
Reply to request 0 from 172.16.1.1, 120 ms
Reply to request 0 from 3.3.3.3, 20 ms
(no ping try to R2, of course, it didn't attempt the ping).
This archive was generated by hypermail 2.1.4 : Mon Jan 09 2006 - 07:07:50 GMT-3