Is it possible to install "iproute2" on Android? I tried to use git clone in googlesource's page but it didn't do much. I want to use the ss command from the package but I don't know how to install it. My phone is ARM 32-bit.
You can't install a whole package on Android as you do on Linux distributions. Android does have ip command built-in from a modified iproute2 package. Many ROMs come pre-bundled with ss binary too. If not, you can build static binary for your device's architecture from source, or try this one.