Allied Telesis AT-9900, RAPIER I, X900-48FE, AT-8900 manual Add igmp filter, MSGType=QUEryREPortLEAVe

60 Internet Group Management Protocol (IGMP) Enhancements Release Note

Command Reference Updates

This section describes each new command and the changed portions of modified commands and output screens. For modified commands and output, the new parameters, options, and fields are shown in bold.

add igmp filter

Syntax ADD IGMP FILter=filter-idGROupaddress={ipaddipadd-ipadd}

[MSGType={QUEryREPortLEAVe}]

[ACtion={INCLudeEXCLude}] [ENTry=1..65535]

where:

■filter-idis a decimal number from 1 to 99.

■ipadd is an IP address in dotted decimal notation.

Description The new 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 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 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 add an entry to filter 6 to accept Membership Reports for multicast group addresses in the range 229.1.1.2 to 230.1.2.3, use the command:

add igmp fil=6 msgt=rep gro=229.1.1.2-230.1.2.3

To add an entry to filter 1 to exclude all general queries, use the command:

add igmp fil=1 msgt=que gro=0.0.0.0 ac=excl

Software Version 2.8.1 C613-10477-00 REV B