Multicast

Submitted by rayc on Mon, 02/14/2022 - 15:32

 

 

 

 

example well-known Local Network and Internetwork Control Blocks of Multicast addresses

IP Multicast Address Description
224.0.0.0 Base address (reserved)
224.0.0.1 All hosts in this subnet (all-hosts group)
224.0.0.2 All routers in this subnet
224.0.0.5 AllSPFRouters
224.0.0.6 AllDRouters
224.0.0.9 All RIPv2 Routers
224.0.0.10 All EIGRP Routers
224.0.0.13 All PIM Routers
224.0.0.18 VRRP
224.0.0.22 IGMPv3
224.0.0.102 HSRPv2 and GLBP
224.0.1.1 NTP
224.0.1.39 Cisco-RP-Announce
224.0.1.40 Cisco-RP-Discovery

 

PIM Control Message Types

Type Message Type Destination PIM Protocol
0 Hello 224.0.0.13 (All PIM Rotuers) PIM-SM, PIM-DM, Bidir-PIM and SSM
1 Register RP address (Unicast)

PIM-SM

2 Register Stop FHR (Unicast) PIM-SM
3 Join/Prune 224.0.0.13 PIM-SM-Bidir-PIM and SSM
4 Bootstrap 224.0.0.13 PIM-SM and Bidir-PIM
5 Assert 224.0.0.13 PIM-SM, PIM-DM and Bidir-PIM
8 Candidate RP advertisement Bootstrap Router (SRP) address Unicast PIM-SM and Bidir-PIM
9 State refresh 224.0.0.13 PIM-DM
10 DF Election 224.0.0.13 Bidi-PIM

 

Configuring autorp on pim-ssm

ip pim autorp listener
ip pim accept-rp auto-rp
ip pim send-rp-discovery scope 31 interval 5

and on the RP

ip pim autorp listener
ip pim accept-rp auto-rp
ip pim send-rp-announce Loopback0 scope 31 interval 5
ip pim send-rp-discovery scope 31 interval 5