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This scenario is based on the previous scenario but now we are going to translate the multicast
group. When the multicast streams 239.192.10.0/24 are forwarded through the if2 interface, the
multicast groups should be translated into 237.192.10.0/24. No address translation should be made
when forwarding through interface if1. The configuration of the corresponding IGMP rules can be
found below in Section 4.5.3.2, “IGMP Rules Configuration - Address Translation”.
Caution
As previously noted, remember to add an Allow rule matching the SAT Multiplex rule.
Example 4.9. Multicast Forwarding - Address Translation
The following SAT Multiplex rule needs to be configured to match the scenario described above:
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
B. Create an IP rule:
1. Go to Rules > IP Rules > Add > IP Rule
2. Under General enter.
• Name: a name for the rule, eg. Multicast_Multiplex
• Action: Multiplex SAT
• Service: multicast_service
3. Under Address Filter enter:
• Source Interface: wan
• Source Network: 192.168.10.1
4.5.2. Multicast Forwarding using the
SAT Multiplex Rule
Chapter 4. Routing
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