3Com S7902E Command Reference Manual - page 1147
1-23
View
Public instance IGMP view, VPN instance IGMP view
Default Level
2: System level
Parameters
None
Description
Use the
require-router-alert
command to configure globally the router to discard IGMP messages that
do not carry the Router-Alert option.
Use the
undo require-router-alert
command to restore the system default.
By default, the device does not check the Router-Alert option, namely it handles all the IGMP messages
it received to the upper layer protocol for processing.
Related commands:
igmp require-router-alert
,
send-router-alert
.
Examples
# Globally configure the router to discard IGMP messages that do not carry the Router-Alert option in
the public instance.
[Sysname] igmp
[Sysname-igmp] require-router-alert
reset igmp group
Syntax
reset igmp
[
all-instance
|
vpn-instance vpn-instance-name
]
group
{
all
|
interface
interface-type
interface-number
{
all
|
group-address
[
mask
{
mask
|
mask-length
} ] [
source-address
[
mask
{
mask
|
mask-length
} ] ] } }
View
User view
Default Level
2: System level
Parameters
all-instance
: Specifies all instances.
vpn-instance vpn-instance-name
: Specifies a VPN instance. A VPN instance name is a case sensitive
string of up to 31 characters and must not contain any space
all
: The first
all
specifies to clear IGMP multicast group information on all interfaces, while the second
all
specifies to clear the information of all IGMP multicast groups.
interface
interface-type interface-number
: Clears IGMP multicast information on the specified
interface.