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72 set igmp filter Software Reference

set igmp filter

Syntax SET IGMP FILter=filter-id ENTry=1..65535

[GROupaddress={ipadd|ipadd-ipadd}] [MSGType={QUEry|

REPort|LEAVe}] [ACtion={INCLude|EXCLude}]

where:

■ filter-id is a decimal number from 1 to 99.

■ ipadd is an IP address in dotted decimal notation.

Description This command modifies an entry in an IGMP filter. IGMP filters control a

port’s membership of multicast groups by filtering incoming IGMP messages

from hosts attached to the port.

The filter parameter specifies the number of the filter that the entry belongs to.

A filter with the specified number must already exist.

The entry parameter specifies the entry to modify. An entry with the specified

number must already exist.

The groupaddress parameter specifies an IP multicast group address or a

range of IP multicast group addresses to match. Set groupaddress to:

■ 0.0.0.0 to filter IGMP general query messages

■ a multicast address or a range of multicast addresses to filter IGMP group-

specific query messages, report messages, and leave messages.

The msgtype parameter specifies the type of incoming IGMP message to

match. If you specify query, the filter will match IGMP general and group-

specific query messages. If you specify report, the filter will match IGMP

report messages. If you specify leave, the filter will match IGMP leave

messages. The default is report.

The action parameter specifies the action to take when an IGMP message with

a message type matching msgtype and a group address matching

groupaddress is received. If you specify include, the message is processed as

normal by IGMP. If you specify exclude, the message is excluded from

processing by IGMP, and the packet is discarded. The default is include.

If an IGMP filter contains at least one entry for a particular IGMP message

type, then messages of the same type for group addresses that do not match

any entries in the filter are implicitly excluded and the packets are discarded.

Examples To change the group address for entry 12 in filter 6 to the range 229.1.1.2 to

230.1.2.3, use the command:

set igmp fil=6 ent=12 gro=229.1.1.2-230.1.2.3

To change entry 1 in filter 2 to accept Membership Reports for multicast group

addresses matching the entry’s group address range, use the command:

set igmp fil=2 ent=1 ac=incl

Related Commands add igmp filter

create igmp filter

delete igmp filter

destroy igmp filter

show igmp filter

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 282 283

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