When explicitly requesting IPv6, getting "access denied" error
This works fine if using "unspecified"
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: Created SSDP client 0x0x55ab357b23d0
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: iface_name : wlp3s0
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: host_ip : fe80::594a:cab5:e768:8497
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: server_id : Linux/5.0.0-16-generic UPnP/1.0 GSSDP/1.2.0
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: network : UnimatrixZero
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: host_addr : 0x0x55ab35688d20
(gupnp-av-cp:23778): gssdp-client-DEBUG: 11:16:23.830: host_mask : 0x0x55ab352f70b0
(gupnp-av-cp:23778): GUPnP-ContextManager-Linux-WARNING **: 11:16:23.830: Error creating GUPnP context: Failed to bind socketError binding to address: Permission denied