natbwmon

what?

• A Small web UI for visaulising up/down bandwidth for NAT clients.

features

• Show bandwidth per lan client between router host and the internet, updated muliple times per second on default settings.

• View tracked connections per client host.

• Web based UI and a command line utility (natbwmontop)

why?

• I wanted to run this on an UniFi Dream Machine Pro which doesnt officially support third party sofware so a static binary that does not link to anything outside itself was the primary target.

• This is only tested on UniFi Dream Machine Pro with one specific port configuration so YMMV, should work on most linux NAT gateway setups though.

• I use this program for an open simple statistic page on the home network that anyone can access. I have no idea how it performs on a network with hundreds or thousands of clients. It might or might not work well at larger scale use cases.

non goals

• This is a purley personal project and I don't see why anyone would use it in a professional settings so no or very few tests are written.

how to use

• The only requirement is Go 1.17 or later for mative and cross platform builds.

• Look at the run script to see how the application is compiled and transferred to the arm64 UDM pro device.

• Execute go run . -h to see command line flags.