Hirschmann RS20 Reference Manual page 55

Switching
Parameter Meaning
Module Module number for modular devices,
otherwise 1.
Port Port to which this entry applies.
IGMP on Switch IGMP on/off for each port.
Switching IGMP off at a port prevents
registration for this port.
Prerequisite: In the
Switching:Multicasts:Global
Settings dialog, the IGMP Snoop-
ing mode is selected.
IGMP Forward All Switch the IGMP Snooping function
"Forward All" on/off
With the "IGMP Forward All" setting,
the device sends to this port all data
packets with a Multicast address in the
destination address field.
Prerequisite: In the
Switching:Multicasts:Global
Settings dialog, the IGMP Snoop-
ing mode is selected.
Note: If a number of routers are con-
nected to a subnetwork, you must use
IGMP version 1 so that all the routers
receive all the IGMP reports.
Note: If you use IGMP version 1 in a
subnetwork, then you must also use
IGMP version 1 in the entire network.
Table 13: Settings per port
RM Web L2B
Release 5.0 04/09
4.3 Multicasts
Value range Default setting
on/off on
on/off off
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