If a firewall is in use, you will need to open serveral ports in the firewall for frp to communicate properly. Open ports 9100(TCP) and 9200(TCP) for bi-directional communications.
Port 9100 is used by frp for mangament server communications. It needs to be opened on the management server (at least incoming) and all replication servers (at least outgoing).
Port 9200 is used by frp for replication engine communications. It needs to be opened (bi-directional) on all replication servers.
Create Reflexive access rules for your routers if needed. Reflexive access lists provide the ability to filter network traffic at a router, based on IP upper-layer protocol "session" information.
Port 9110(UDP) is used by frp for the server auto-discovery (multi-cast) feature. The FRP management server will auto-discover all FRP replication servers which reside on the same LAN as the management server using multi-cast UDP messages broadcast on this port.
Auto discovery will not work between two seperate networks but will work within an intranet environment. To allow auto-discovery port 9110 has to be opened for UDP (outgoing from the management server and incoming for all local replication servers). Please note that many firewalls have UDP open by default. However, newer versions, and in particular, the Windows Advanced Firewall runnig on Windows 7 have UDP blocked by default.
Please see the following article for more detailed information: FRP Network Protocols and Ports Used and FRP Network Configuration.
- Updated 11/09/2009
