Feature #3155: SAT>IP Server - Add support for bind to interface/ip
[UDP][UPNP] Wrong interface is used for multicast traffic on a gateway device
TVH is installed on a gateway computer. There are two network interfaces - lan and wan. A default route for multicast traffic is going through the wan interface. Multicast traffic on the wan interface is blocked by firewall.
TVH is explicitly bound to the lan interface (--bindaddr and --satip_bindaddr options) but it uses wan interface for multicast traffic. As a result, TVH doesn't see other UPnP services and other services don't see TVH.
As a workaround, I've added a new route for multicast traffic through the lan interface. But I think it would be more correct to use bindaddr and satip_bindaddr interfaces for multicast.