R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

Table Of Contents
419
undo require-router-alert
View
Public 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> system-view
[Sysname] igmp
[Sysname-igmp] require-router-alert
reset igmp group
Syntax
reset igmp 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: 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.
group-address: Multicast group address, in the range of 224.0.0.0 to 239.255.255.255.
source-address: Multicast source address.
mask: Subnet mask of the multicast group/source address, 255.255.255.255 by default.
mask-length: Subnet mask length of the multicast group/source address. For a multicast group address,
this argument has an effective value range of 4 to 32; for a multicast source address, this argument has
an effective value range of 0 to 32. The system default is 32 in both cases.