# RPC configuration setup Source: [https://docs.qualcomm.com/doc/80-41102-1/topic/rpc-configuration-setup.html](https://docs.qualcomm.com/doc/80-41102-1/topic/rpc-configuration-setup.html) - Set a different system ID and unicast address in /legato/systems/current/appsWriteable/tafSomeipGWSvc/tafSomeipGWSvc.json for each TelAF system. - Refer to [RPC JSON configuration](https://docs.qualcomm.com/doc/80-41102-1/topic/rpc-json-configuration.html) to declare the RPC systems and RPC services in /legato/systems/current/appsWriteable/tafRpcProxy/taf\_rpc.json file for each TelAF system. Note that the same taf\_rpc.json file must be applied for all TelAF systems. - Create a route entry for the multicast address 224.0.0.1 on each TelAF system. - Run `telaf restart` on each TelAF system to make the new configuration take effect. - Refer to [RPC binding](https://docs.qualcomm.com/doc/80-41102-1/topic/rpc-binding.html) or [Bind the same service on both local and remote systems](https://docs.qualcomm.com/doc/80-41102-1/topic/bind-the-same-service-on-both-local-and-remote-systems.html) for application to bind RPC services. **Parent Topic:** [TelAF RPC](https://docs.qualcomm.com/doc/80-41102-1/topic/rpc.html) Last Published: Aug 06, 2026 [Previous Topic RPC JSON configuration](https://docs.qualcomm.com/bundle/publicresource/80-41102-1/topics/rpc-json-configuration.md) [Next Topic Build RPC test systems and run the test application](https://docs.qualcomm.com/bundle/publicresource/80-41102-1/topics/build-rpc-test-systems-and-run-the-test-application.md)