Offering a service to a client using a multicast endpoint option

[mogar]

I have a vsomeip server that offers a specific service to a client whose sw I don't control. That client wants to subscribe to my service with a multicast IP address, rather than a unicast address.

vsomeip is reporting the following error whenever my client device attempts to subscribe: 2025-01-22 19:23:00.647301 [warning] handle_eventgroup_subscription: Subscription for [03dd.0001.0003] not valid: Event configuration (2) does not match the provided endpoint options: 0.0.0.0:65535 0.0.0.0:65535

Is there a way to configure vsomeip to allow for multicast IPs to be used to communicate with clients? The client wants to use an endpoint option of 1: IPv4 Multicast Option (239.255.250.250:30500 (UDP)), which is different than what's being used for SD.