Requirements for Speedwire Communication

If the Sunny Home Manager is to communicate with other SMA devices via SMA Speedwire (Ethernet), the Sunny Home Manager and the Speedwire devices must be in the same local network.

Only one system with Sunny Home Manager may be installed in the local network. If there are several systems with SMA devices, these must be separated from each other in the network, for example by using sub-networks.

DHCP must be active on the router (see router documentation).

All UDP ports > 1024 on the router must be open for outgoing connections. If there is a firewall installed on the router, you might have to adjust the firewall settings.

It must be possible for the outgoing router connections to reach all Internet destinations (target IP, target port). If there is a firewall installed on the router, you might have to adjust the firewall settings.

On the router with Network Address Translation), no port forwarding must be entered. Potential communication problems can thus be prevented.

There must be no packet filtering or manipulation for SIP packets installed on the router.

The routers and network switches with router function must forward the Multicast telegrams (telegrams with destination address 239.0.0.0 to 239.255.255.255) required for the Speedwire connection to all nodes of the Speedwire network.

All network components used must support the IGMP protocol, minimum version 3 (IGMPv3) (see network component documentation).