Specifying Multicast Groups - Juniper JUNOSE 11.0.X MULTICAST ROUTING Configuration Manual

JUNOSe 11.0.x Multicast Routing Configuration Guide

Specifying Multicast Groups

You can use a standard-format or extended-format IP access list to specify the
multicast groups that a host can join.
ip igmp access-group
ip igmp access-source-group
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Specifying Multicast Groups

Use the no version to restore the default, 3.
See ip igmp robustness.
Use to restrict hosts on this subnetwork to join only multicast groups that appear
on the specified IP access list.
When this feature is configured, the access list is queried whenever the router
receives an IGMPv2 report requesting membership of a group, and IGMPv3
ChangeToInclude or IsExclude reports. The request is rejected if the access list
query fails.
The ip igmp access-group command accepts standard or extended-format access
lists. Because the extended format enables you to specify both the source address
and the destination group address, the source address must be set to any. For
example, access-list test permit ip host 224.128.64.32 any.
Note that in the access list specified when you issue this command, the group
is specified before the source.
Example
host1:boston(config-if)#ip igmp access-group boston-list
Use the no version to dissociate the interface from an access list and to enable
hosts on the interface to join any multicast group.
See ip igmp access-group.
Use to restrict hosts on this subnetwork to membership in those (S,G) pairs (also
known as channels) included on the specified IP access list.
When this feature is configured, both source and group addresses query the
associated access list whenever the router receives an IGMPv3 report requesting
membership of the (S,G) pairs (that is, the router receives an IGMPv3
ChangeToInclude, IsInclude, or AllowNewSource group report). The request is
rejected if the access list query fails.
The ip igmp access-source-group command accepts standard or extended-format
access lists. The extended format enables you to specify both the source address
and the destination group address; for example, access-list test permit ip host
10.1.1.1 host 224.128.64.32. Typically, you use the extended-format access list.
If you instead use the standard-format access list, you explicitly specify the source
address to create the access list, but the group address is implicitly assumed to
be any,
Note that in the access list specified when you issue this command, the source
is specified before the group.