Command Reference Updates - Allied Telesis AT-8600 Release Note

60 Internet Group Management Protocol (IGMP) Enhancements
Syntax
Description
Examples

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
ADD IGMP FILter=filter-id GROupaddress={ipadd|ipadd-ipadd}
[MSGType={QUEry|REPort|LEAVe}]
[ACtion={INCLude|EXCLude}] [ENTry=1..65535]
where:
■
filter-id is a decimal number from 1 to 99.
■
ipadd is an IP address in dotted decimal notation.
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.
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
Release Note
Software Version 2.8.1
C613-10477-00 REV B