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Page 296 / 998 Scroll up to view Page 291 - 295
IGMP snooping
IGMP Snooping command reference
iMG/RG Software Reference Manual (IGMP)
3-34
Example
Æ
igmp snooping disable vlan_video
See also
IGMP SNOOPING ENABLE
3.1.5.1.34
IGMP SNOOPING ENABLE
Syntax
IGMP SNOOPING ENABLE
Description
This command enables the layer-2 IGMP snooping feature.
Default timeout values are used:
•
leavetime10secs
•
timeout270secs
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
Æ
igmp snooping enable vlan_video
See also
IGMP SNOOPING DISABLE
IGMP SNOOPING SET
3.1.5.1.35
IGMP SNOOPING SET SECONDARY-NETINTERFACE
Syntax
IGMP SNOOPING SET SECONDARY-NETINTERFACE
<secondary_net_interface>
Description
This command sets the ip address interface used as reference for the ip address value to
be replaced in the upstream IGMP signalling messages. The IGMP module will use this
secondary ip interface ONLY if the ip interface attached to the vlan where IGMP snoop-
ing has been enabled has null value (0.0.0.0). In the contrary all upstream IGMP signalling
Option
Description
Default value
vlan_name
The name of an existing vlan where igmp snooping
has been previously enabled.
N/A
Option
Description
Default value
vlan_name
The name of an existing vlan where igmp snooping
has been previously enabled.
N/A
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IGMP Snooping command reference
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iMG/RG Software Reference Manual (IGMP)
messages will use the ip address of the IP interface immediately attached to the multicast
vlan.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
Æ
igmp snooping set secondary-netinterface ip_mgmt
See also
IGMP SNOOPING SHOW
3.1.5.1.36
IGMP SNOOPING SET MODE
Description
IGMP SNOOPING SET MODE <mode>
This command sets the mode to forward IGMP packets. When mode is set to “proxy”,
the original Source MAC address and the original Source IP address are substituted with
the gateway’s own MAC and IP addresses. When mode is set to “snooping”, the IGMP
packets are forwarded with no changes.
When IGMP snooping is enabled, by default this parameter is set “snooping”.
Options
The following table gives the range of values for each option which can be specified with
this command and a default value (if applicable).
Example
--> igmp snooping set mode proxy
See also
IGMP SNOOPING ENABLE
Option
Description
Default value
secondary_net_interface
The name of an existing IP interface to be
used as reference source IP address.
N/A
Option
Description
Default value
mode
Implemented different igmpsnooping mode:
proxy
: Substitutes Source MAC Address and Source MAC
address with its own addresses forwarding received IGMP
packets.
snooping
: Forwards received IGMP packets with no
changes.
snooping
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IGMP snooping
IGMP Snooping command reference
iMG/RG Software Reference Manual (IGMP)
3-36
3.1.5.1.37 IGMP SNOOPING SET LEAVETIME
Syntax
IGMP SNOOPING SET LEAVETIME <leavetime>
Description
This command sets the duration of the Leave Period timer for the IGMP snooping pro-
cess. The timer controls the maximum allowed time before hosts must send a response
to Query message issued by the Gateway.
When IGMP snooping is enabled, by default this value is set to 10 sec.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
◊
igmp snooping set leavetime 50
See also
IGMP SNOOPING ENABLE
3.1.5.1.38 IGMP SNOOPING SET TIMEOUT
Syntax
IGMP SNOOPING SET TIMEOUT <timeout>
Description
This command sets the longest interval, in seconds, for which a group will remain in the
local multicast group database without the Residential Gateway receiving a
Host Member-
ship Report
for this multicast group.
When IGMP snooping is enabled, by default this value is set to 270 sec.
Options
The following table gives the range of values for each option that can be specified with
this command and a default value (if applicable).
Example
igmp snooping set timeout 125
See also
IGMP SNOOPING ENABLE
Option
Description
Default value
leavetime
The leavetime value expressed in seconds. Valid values are
between 0 and 65535.
10
Option
Description
Default value
timeout
The timeout interval value expressed in seconds. Valid val-
ues are from 1 to 65535.
270
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iMG/RG Software Reference Manual (IGMP)
3.1.5.1.39 IGMP SNOOPING SHOW
Syntax
IGMP SNOOPING SHOW
Description
This command shows IGMP snooping status.
The following information are reported:
•
Timeout Interval
Interval after which entries will be removed from the group database
•
Interface Name
VLAN reference
•
Multicast Router
Recognized Multicast route
•
Group List
Membership list for this VLAN
•
Group
The group multicast address. Multicast Filter highlights members useful to stop
•
Port
Port where the member is attached
•
Last Adv
The last host to advertise the membership report or query
•
Refresh time
The time interval (in seconds) before the membership group is deleted
See also
IGMP SNOOPING ENABLE
3.1.5.1.40 IGMP SNOOPING SECURITY
Syntax
IGMP SNOOPING SECURITY <enable/disable>
Description
This command enables/disables the security feature
3.1.5.1.41 IGMP SNOOPING SECURITY SET MAXMACNUMBER
Syntax
IGMP SNOOPING SECURITY SET MAXMACNUMBER <max_mac_number>
Description
This command sets the maximum number of MAC addresses that can be statically (via the
“add” command) or dynamically (via auto-learning) managed by the CPE. Range is 1-10,
default 5. In case of some MACs have been already learned/set, a new value of this param-
eter is accepted if equal or greater than registered MAC numbers.
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IGMP snooping
IGMP Snooping command reference
iMG/RG Software Reference Manual (IGMP)
3-38
3.1.5.1.42 IGMP SNOOPING SECURITY LEARNING
Syntax
IGMP SNOOPING SECURITY LEARNING <enable/disable>
Description
This command enables/disables the auto-learning option
3.1.5.1.43 IGMP SNOOPING SECURITY ADD
Syntax
IGMP SNOOPING SECURITY ADD <name> max <mac_address>
Description
This command statically adds a new MAC address.
3.1.5.1.44 IGMP SNOOPING SECURITY DELETE
Syntax
IGMP SNOOPING SECURITY DELETE {<name> | ALL }
Description
This command deletes a MAC entry, either statically or dynamically added
3.1.5.1.45 IGMP SNOOPING SECURITY SHOW
Syntax
IGMP SNOOPING SECURITY SHOW
Description
This command shows the security info the MAC list and the status
3.1.5.1.46 IGMP PROXY SET UPSTREAMINTERFACE
Syntax
IGMP PROXY SET UPSTREAMINTERFACE {<ip_interface> | NONE}
Description
This command enables the gateway's IGMP Proxy Routing function, and sets one of the
existing IP interfaces as the upstream interface; all other interfaces are designated down-
stream interfaces. The upstream interface implements the
Host
portion of the IGMP pro-
tocol, and the downstream interfaces implement the
Router
portion of the IGMP
protocol. Setting upstream interface to none may disable the IGMP Proxy.
Options
The following table gives the range of values for each option, which can be specified with
this command, and a default value (if applicable).
Options
--> igmp proxy set upstreaminterface ip0
See also
IGMP PROXY SHOW STATUS
Option
Description
Default value
ip_interface
The name of an existing interface that you want to
set as the upstreaminterface.
N/A
none
Disables IGMP proxy
N/A

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