We discovered an issue in the service discovery module with ipv6 and local link addresses. We use one Linux ECU with vsomeip and an ECU with Autosar Classic. On receiving side of the subscribe ack the session id is incorrect.

The SD module handles two session counters for one receiving ECU. One for subscribing to a service offered by another ECU and one for the subscribe ack when an ECU subscribed a service from the host ECU.
For the ack in service_discovery_impl::get_session(const boost::asio::ip::address &_address) the address object contains the device e.g. fe80::a8bb:ccff:fedd:2%eth0. For other sd operations the object contains only the address e.g. fe80::a8bb:ccff:fedd:2.