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.

[mogar]

In case anyone else is having issues with this, I found that making the following change to vsomeip was helpful:

diff --git implementation/service_discovery/src/service_discovery_impl.cpp implementation/service_discovery/src/service_discovery_impl.cpp
index de6e846..0939d58 100644
--- implementation/service_discovery/src/service_discovery_impl.cpp
+++ implementation/service_discovery/src/service_discovery_impl.cpp
@@ -2149,7 +2149,8 @@ service_discovery_impl::process_eventgroupentry(
                 break;
             }
             case option_type_e::IP4_MULTICAST:
-                if (entry_type_e::SUBSCRIBE_EVENTGROUP_ACK == its_type) {
+                if ((entry_type_e::SUBSCRIBE_EVENTGROUP_ACK == its_type)
+                        || (entry_type_e::SUBSCRIBE_EVENTGROUP == its_type)) {
                     std::shared_ptr < ipv4_option_impl > its_ipv4_option =
                             std::dynamic_pointer_cast < ipv4_option_impl
                                     > (its_option);