ZyXEL Communications IES1248 User Manual

Page of 92
 
 
IES 1248 Support Notes 
 
 
All contents copyright (c) 2006 ZyXEL Communications Corporation.   
40
 
 
We select the Subscriber1 in IGMP Filter Profile Combobox. And click Apply to let 
the setting take effect. 
 
Go back to check the IGMP Snooping table. We will see only two channels allowed to 
be forwarded to port 1. 
 
 
Static Multicast   
 
What is Static Multicast Filter? 
Static Multicast Filter allow network administrator to configure multicast group 
consisting of one or more ranges of MAC multicast addresses. An administrator can 
control multicast traffic per-switch-port basis with static multicast filter. By default, 
all multicast traffic are dropped without static multicast filter setup or IGMP snooping 
which cause some routing protocol such as RIPv2 and OSPF can not be passed 
through IP DSLAM. So administrator must do any configuration of static multicast 
filter to pass such routing protocol and other related application smoothly. 
Some Well-known multicast group address: 
224.0.0.1---------all systems on this subnet