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HIRSCHMANN NB1810 NetModule Router User Manual

5.4.4. Multicast  
Multicast distributes IP packets to subscribers in a one-to-many relationship. The subscribers use  
multicast messages to subscribe to a MCR group and receive the data in form of multicast packets.  
Therefore the messages are sent by the packet sink to the packet source.  
Multicast routing (MCR) is used to farward multicast data from one network to another.  
Attention:  
As multicast is used to send data from one source to several destinations on the same  
network it is quite common for testing applications to set the TTL of multicast packets to  
1 to prevent the packets from spilling into other networks. If you want to route multicast  
packets (that’s why it is called MCR) you’ll have to make sure to send your data with a  
TTL > 1.  
Multicast routing can be configured and managed by a daemon. Only one MCR daemon can be used  
at a time.  
NetModule routers ship with two different MCR daemons to select from depending on your dependen-  
cies:  
Parameter  
Administrative Status  
IGMP proxy  
Forwarding of multicast messages that are dynamically detected on a  
given interface to another interface  
static routes  
disabled  
List of MCR rules to forward messages of dedicated source and group  
from a given interface to another  
Disable routing of multicast messages  
IGMP proxy  
IGMP proxy which is able to maintain multicast groups on a particular interface and distribute incoming  
multicast packets towards the downstream interfaces on which hosts have joined the groups.  
Parameter  
Multicast Routing Settings  
Incoming interface  
The upstream interface on which multicast groups are joined and on  
which multicast packets come in  
Sender network  
Sender netmask  
Distribute to  
The multicast source network address  
The multicast source network mask  
Specifies the downstream interfaces to which multicast packets will  
be forwarded  
Static Routes  
Routes multicast packets in different directions depending on their origin and group based on a given  
set of MCR rules:  
NB1810  
95  
User Manual for NRSW version 4.8.0.102  
GeneralDetails
NameHIRSCHMANN NB1810 NetModule Router User Manual
MakeHIRSCHMANN
LanguageEnglish
FiletypePDF (Download)
File size MB
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