Fortinet MR1 - Manual (Page 402)

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The source parameter is used to clear the routes in the mroute table entries containing the
specified > or <sourceipaddr> [groupipaddr] pair. The source address is the
source IP address of the multicast packet. The group address is the Group Destination IP
address of the multicast packet.
The group parameter is used to clear the routes in the mroute table entries containing the
specified >. The group address is the Group Destination IP address of the
multicast packet.
Syntax
no ip mcast mroute {group | source [] | all}
< groupipaddr > - the IP address of the destination of the multicast packet.
< sourceipaddr > - the IP address of the multicast packet source.
all - This command is used to clear all entries.
Default Setting
None
Command Mode
Global Config
7.3.2.4 ip mcast boundary
This command adds an administrative scope multicast boundary specified by
and for which this multicast administrative boundary is applicable. is
a group IP address and is a group IP mask.
Syntax
ip mcast boundary
no ip mcast boundary
< groupipaddr > - the multicast group address for the start of the range of addresses to be excluded.
The address must be in the range of 239.0.0.0 through 239.255.255.255.
< mask > - mask to be applied to the multicast group address.