golang-github-nebulouslabs-go-upnp-dev binary package in Ubuntu Jammy s390x

 The upnp package upnp provides a simple and opinionated interface to
 UPnP-enabled routers, allowing users to forward ports and discover their
 external IP address.
 .
 Specific quirks:
 .
   - When attempting to discover UPnP-enabled routers on the network, only
     the first such router is returned. If you have multiple routers, this may
     cause some trouble. But why would you do that?
   - Forwarded ports are always symmetric, e.g. the router's port 9980 will
     be mapped to the client's port 9980. This will be unacceptable for some
     purposes, but too bad. Symmetric mappings are the desired behavior 99%
     of the time, and they save a function argument.
   - TCP and UDP protocols are forwarded together.
   - Ports are forwarded permanently. Some other implementations lease a port
     mapping for a set duration, and then renew it periodically. This is nice,
     because it means mappings won't stick around after they've served their
     purpose. Unfortunately, some routers only support permanent mappings,
     so this package has chosen to support the lowest common denominator. To
     un-forward a port, you must use the Clear function (or do it manually).
 .
 Once you've discovered your router, you can retrieve its address by
 calling its Location method. This address can be supplied to Load
 to connect to the router directly, which is much faster than calling
 Discover.
 .
 See the godoc (http://godoc.org/github.com/NebulousLabs/upnp) for full
 documentation.

Source package