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Page 100 | AlliedWare™ OS How To Note: IGMP
Stopping snoopers from snooping non-IGMP messages > Controlling which addresses create All Groups entries
Using the other routermode options
As described earlier, routermode=multicastrouter is just a shortcut for the two IP
addresses for DVMRP and PIM.
The mode routermode=none stops any reserved multicast addresses from being identified
as coming from routers.
Conversely, the mode routermode=all means that all reserved multicast addresses
(224.0.0.
1
to 224.0.0.255) are identified as coming from routers.
Manager Switch 2> set igmpsnooping routermode=multicastrouter
Info (1005282): IGMPSnooping Routermode successfully updated.
Manager Switch 2> show igmpsnooping routeraddress
IGMP Snooping Router Address
----------------------------------------------------------------------
IGMP Snooping Router Mode ......... multicastrouter
Router Address List
--------------------------------------------------------
224.0.0.4 224.0.0.13
----------------------------------------------------------------------
Manager Switch 2> set igmpsnooping routerm=none
Info (1005282): IGMPSnooping Routermode successfully updated.
Manager Switch 2> show igmpsnooping routeraddress
IGMP Snooping Router Address
----------------------------------------------------------------------
IGMP Snooping Router Mode ......... none
Router Address List
--------------------------------------------------------
No reserved multicast addresses configured
----------------------------------------------------------------------