10-72
IPv4 Access Control Lists (ACLs)
Configuring Extended ACLs
Option for IGMP in Extended ACLs. This option is useful where it is nec-
essary to permit some types of IGMP traffic and deny other types instead of
simply permitting or denying all types of IGMP traffic. That is, an ACE
designed to permit or deny IGMP traffic can optionally include an IGMP
packet type to permit or deny an individual type of IGMP packet while not
addressing other IGMP traffic types in the same ACE. (For a summary of the
extended ACL syntax options, refer to table on page 10-59.)
Syntax: < permit | deny > igmp < SA > < DA > [ igmp-type ]
In an extended ACL using igmp as the packet protocol type, you
can optionally specify an individual IGMP packet type to
further define the criteria for a match. This option, if used, is
entered immediately after the destination addressing entry.
The following example shows an IGMP ACE entered in the
Named ACL context:
HP Switch(config-ext-nacl)# permit igmp any
any host-query
[ igmp-type ]
The complete list of IGMP packet-type options includes:
dvmrp trace mtrace-request
host-query v2-host-report v3-host-report
host-report v2-host-leave
pim mtrace-reply
For more information on IGMP packet types, visit the Internet
Assigned Numbers Authority (IANA) website at www.iana.com,
click on “Protocol Number Assignment Services”, and then go
to the selections under “Internet Group Management Protocol
(IGMP) Type Numbers”.
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