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DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
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LIMITED IP MULTICAST ADDRESS (IGMP FILTERING)
The Limited IP Multicast Address (IGMP Filtering) commands allow users to specify which multicast address(es) reports are to
be received on specified ports on the switch. This function will therefore limit the number of reports received and the number of
multicast groups configured on the switch. The user may set an IP address or range of IP addresses to accept reports (Permit) or
deny reports (Deny) coming into the specified switch ports. The Limited IP Multicast Address Commands in the Command Line
Interface (CLI) are listed (along with the appropriate parameters) in the following table.
Command Parameters
config limited multicast address
<portlist> {from <multi
cast_ipaddr> to <multicast_ipaddr> access [permit | deny]
| state [enable | disable]} (1)
delete limited multicast address
[all | <portlist>]
show limited multicast address {<portlist>}
Each command is listed, in detail, in the following sections.
config limited multicast address
Purpose Used to configure limited IP multicast address range.
Syntax
config limited multicast address <portlist> {from <multicast_ipaddr> to
<multicast_ipaddr> access [permit | deny] | state [enable | disable]} (1)
Description This command is used to configure the multicast address range, access level, and state.
Parameters <portlist> – A port or range of ports to config the limited multicast address. The port list is
specified by listing the lowest switch number and the beginning port number on that
switch, separated by a colon. Then the highest switch number, and the highest port
number of the range (also separated by a colon) are specified. The beginning and end of
the port list range are separated by a dash. For example, 1:3 specifies switch number 1,
port 3. 2:4 specifies switch number 2, port 4. 1:3–2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order. Non–contiguous portlist entries
are separated by a comma. (ex: 1:1–1:3,1:7–1:9)
from <multicast_ipaddr> – Enter the lowest multicast IP address of the range.
to <multicast_ipaddr> – Enter the highest multicast IP address of the range.
access – Choose either permit or deny to limit or grant access to a specified range of
Multicast addresses on a particular port or range of ports.
state – This parameter allows the user to enable or disable the limited multicast address
range on a specific port or range of ports.
Restrictions Only Administrator and Operator-level users can issue this command.
Example usage:
To configure the limited multicast address on ports 1–3:
DGS–3426:5#config limited multicast address 1:1–1:3 from 224.1.1.1 to 224.1.1.2
access permit state enable
Command: config limited multicast address 1:1–1:3 from 224.1.1.1 to 224.1.1.2
access permit state enable
Success.
DGS–3426:5#
