Hi, I am not famliar with Multicast at all, please forgive my ignorance. I need to replace Fortigate firewalls with Palo Alto devices and the Fortigates are currently running Multicast. There are no "groups" defined on the fortigate, and if I run "get router info multicast pim sparse-mode table" on the fortigate I can see many groups listed. Can someone please explain the nature of groups and how they work? My confusion is that there are no groups explicitly defined on the Fortigate, however, I need to explicitly define groups on the Palo Alto? Do I need to define all groups I see on the Fortigate? Do groups change dynamically or are they static once set (I'm thinking, if I define them on the PAN and they change, will the multicast break)? Any help and explainations greatly appreciated. Thanks, Shannon
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