Multicast configuration

Objectives

Configuration

Router 3

config t

ip multicast-routing

int f0/1

 ip pim sparse-mode

exit

ip pim rp-address 129.186.35.3

Router 5

config t

ip multicast-routing

int f0/1

 ip pim sparse-mode

exit

ip pim rp-address 129.186.35.3

Router 7

config t

ip multicast-routing

int f0/1

 ip pim sparse-mode

exit

ip pim rp-address 129.186.35.3

Verifying

R3#show ip pim neighbor

PIM Neighbor Table

Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,

      S - State Refresh Capable

Neighbor          Interface                Uptime/Expires    Ver   DR

Address                                                            Prio/Mode

129.186.35.5      FastEthernet0/1          00:28:55/00:01:22 v2    1 / S

129.186.35.7      FastEthernet0/1          00:40:41/00:01:17 v2    1 / DR S

Adding routers in multicast group

R3

int f0/1

ip igmp join-group 239.77.77.77

R5

int f0/1

ip igmp join-group 239.77.77.77

R7

int f0/1

ip igmp join-group 239.77.77.77

Verifying

R3#ping 239.77.77.77

Type escape sequence to abort.

Sending 1, 100-byte ICMP Echos to 239.77.77.77, timeout is 2 seconds:

Reply to request 0 from 129.186.35.3, 8 ms

Reply to request 0 from 129.186.35.7, 48 ms

Reply to request 0 from 129.186.35.5, 44 ms

R3#