Juniper JUNOSE 11.0.X MULTICAST ROUTING Configuration Manual page 129

To use PIM SSM, IGMPv3 must be configured on customer premise equipment
(CPE)–facing interfaces to receivers, and PIM sparse mode must be configured on
CPE-facing interfaces to sources and on core-facing interfaces. After configuring SSM,
you can use the show ip pim sparse-mode sg-state command to display SSM group
membership information.
To configure PIM SSM:
1.
2.
3.
PIM SSM also works with IGMPv2 if you configure the ssm-map in IGMP as in the
following example:
The no version disables ssm-map:
ip pim ssm
Enable PIM SSM on the E Series router. The IANA SSM range (232.0.0.0/8) is
configured by default. You can modify the SSM address range by using the access
list.
host1(config)#access-list 15 permit ip any host 239.0.0.2
host1(config)#access-list 15 permit ip any 232.0.0.0 0.225.225.225
host1(config)#ip pim ssm range 15
Enable PIM sparse mode on the CPE-facing interface towards the source or core.
Enable IGMPv3 on the CPE-facing interface towards the receiver. PIM SSM also
works with IGMPv2 if you configure the ssm-map in IGMP as in the following
example:
host1(config)#ip pim ssm
host1(config)#access-list ssm_map1 permit 232.0.0.1 255.255.255.255
host1(config)#ip igmp ssm-map enable
host1(config)#ip igmp ssm-map static ssm_map1 51.0.0.1
host1(config)#no ip igmp ssm-map static ssm_map1 51.0.0.1
Use to enable PIM SSM and define the SSM range for IPv4 multicast addresses.
Use the range keyword to define the SSM range of IP multicast addresses.
Example 1 Enables SSM with addresses in the IANA range. The SSM address
range is set as the default and by default, the SSM group multicast address is
limited to the IPv4 address range 232.0.0.0/8.
host1(config)#ip pim ssm
Example 2 Configures Class D addresses outside of the default SSM range.
host1(config)#access-list alist permit any 223.0.0.0 0.255.255.255
host1(config)#ip pim ssm range alist
Example 3 Resets the SSM address range to the default.
host1(config)#ip pim ssm default
Chapter 3: Configuring PIM for IPv4 Multicast
Configuring PIM SSM
107