/usr/lib/x86_64-linux-gnu/libgupnp-igd-1.0.so is in libgupnp-igd-1.0-dev 0.2.5-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgupnp-igd-1.0.so.4.2.0
/usr/lib/x86_64-linux-gnu/libgupnp-igd-1.0.so.4.2.0