Configuring IGMP in Gaia Clish
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Important:
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To see the available "
set" commands for IGMP, enter in Gaia Clish
The name of the default command line shell in Check Point Gaia operating system. This is a restricted shell (role-based administration controls the number of commands available in the shell).:set igmp[Esc][Esc] -
To see the available "
show" commands for IGMP, enter in Gaia Check Point security operating system that combines the strengths of both SecurePlatform and IPSO operating systems. Clish:show igmp[Esc][Esc]
Syntax
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Parameters
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Description |
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The interface, on which IGMP should be configured. |
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Reset IGMP settings to defaults for the specified interface. |
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This parameter applies only to IGMP versions 2 and newer. When an IGMP router receives a "Leave Group" message, the router issues a membership query to determine if any hosts remain that still desire multicast data for the given group. The query message is repeated a number of times, at an interval which is determined by this parameter (in seconds). If no responses are received, then multicast routing for this group stops. This parameter defines the maximum response time inserted into IGMP group-specific queries. A smaller value results in a reduction in the time to detect the loss of the last member of a multicast group.
Default: 1 |
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A multicast group address. A local group provides a mechanism to simulate the presence of local receivers for specific groups. When a multicast group is added to an interface, IGMP sends a membership report on the interface. |
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Expected packet loss on a subnet. If you expect the subnet to be highly lossy, then you can increase the "loss robustness" value. IGMP protocol operation is robust to ("value of loss robustness" - 1) packet loss. Default: 2 |
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The interval (in seconds) between IGMP general queries which the querier router sends. You can use this parameter to tune the IGMP messaging overhead and has a secondary effect on the timeout of idle IP multicast groups. Default: 125 |
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The maximum response time (in seconds) inserted into the periodic IGMP general queries. You can use the query response interval to tune the burstiness of IGMP messages; a greater value spreads the host IGMP reports over a greater interval, which reduces burstiness.
Default: 10 |
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Lets you disable the insertion of IP router alert in all IGMP messages sent on the interface. This can be useful with broken IP implementations that may discard the packet because of the use of this option. Default: |
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A multicast group address. A static group provides a mechanism to simulate the presence of local receivers on an interface. When a static group is configured on an interface that also runs a parent multicast protocol (such as PIM), IGMP informs the parent of the presence of a local receiver. In contrast to regular IGMP, no membership reports are sent on the corresponding interface.
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Number of adjacent groups, to which this interface subscribes. |
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Controls the increment between groups. Static group configuration provides a mechanism to simulate the presence of local receivers on the interface. When a static group is configured on an interface, the parent protocol (e.g. PIM) is notified of the presence of a local receiver. Local groups and static groups are similar in behavior. The difference is that IGMP membership reports are not sent for static groups. If the same multicast group is configured as both a local and a static group, the local group takes precedence. In other words, membership reports are sent out the interface for that group when it is configured as a local group, regardless of static group configuration. |
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IGMP version 2 is compatible with IGMP version 1. IGMP version 3 is compatible with versions 2 and 1.
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