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Figure 4.14. Multicast Forwarding - No Address Translation
Note: SAT Multiplex rules must have a matching Allow rule
Remember to add an Allow rule that matches the SAT Multiplex rule.
The matching rule could also be a NAT rule for source address translation (see
below) but cannot be a FwdFast or SAT rule.
Example 4.12. Forwarding of Multicast Traffic using the SAT Multiplex Rule
In this example, we will create a multiplex rule in order to forward the multicast groups 239.192.10.0/24:1234 to
the interfaces if1, if2 and if3. All groups have the same sender 192.168.10.1 which is located somewhere behind
the wan interface.
The multicast groups should only be forwarded to the out interfaces if clients behind those interfaces have
requested the groups using IGMP. The following steps need to be performed to configure the actual forwarding of
the multicast traffic. IGMP has to be configured separately.
Web Interface
A. Create a custom service for multicast called multicast_service:
1. Go to Objects > Services > Add > TCP/UDP
2. Now enter:
• Name: multicast_service
• Type: UDP
• Destination: 1234
4.6.2. Multicast Forwarding with SAT
Multiplex Rules
Chapter 4. Routing
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