Protocols and standards, Configuring igmp, Configuration prerequisites – H3C Technologies H3C SecPath F1000-E User Manual
Page 361: Configuration overview
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IS_EX: The source filtering mode is Exclude, namely, the report sender requests the multicast data
from any sources but those defined in the specified multicast source list.
•
TO_IN: The filtering mode has changed from Exclude to Include.
•
TO_EX: The filtering mode has changed from Include to Exclude.
•
ALLOW: The Source Address fields in this Group Record contain a list of the additional sources that
the system wishes to hear from, for packets sent to the specified multicast address. If the change was
to an Include source list, these are the addresses that were added to the list; if the change was to
an Exclude source list, these are the addresses that were deleted from the list.
•
BLOCK: indicates that the Source Address fields in this Group Record contain a list of the sources
that the system no longer wishes to hear from, for packets sent to the specified multicast address. If
the change was to an Include source list, these are the addresses that were deleted from the list; if
the change was to an Exclude source list, these are the addresses that were added to the list.
Protocols and Standards
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RFC 1112: Host Extensions for IP Multicasting
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RFC 2236: Internet Group Management Protocol, Version 2
•
RFC 3376: Internet Group Management Protocol, Version 3
Configuring IGMP
Configuration Prerequisites
Before configuring IGMP, complete the following tasks:
•
Configure a unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
•
Configure PIM-DM or PIM-SM.
Configuration Overview
Perform the tasks in
to configure IGMP.
Table 1 IGMP configuration task list
Task Remarks
Globally enable multicast routing
Required
Globally enable multicast routing after selecting Network >
Routing Management > Multicast Routing. For more
information, see Multicast Routing Configuration in the Web
Configuration Manual.
By default, multicast routing is globally disabled.
Required
Enable IGMP and configure an IGMP version on interfaces.
By default, IGMP is disabled and the default IGMP version is 2.
Displaying IGMP Multicast Group
Information
Optional
View the IGMP multicast group information on interfaces.