Very simple console network traffic monitor for Linux.
Usage:
netmon INTERFACE
Where INTERFACE is one of the interfaces on /sys/class/net/ directory.
You can install directly to your system. Default target directory is /usr/local/bin/. Change PREFIX variable to /usr if you want to.
make && make install
or
make && make install PREFIX=/usr
Maybe you can install from AUR. Or build the package it by hand:
make pkg_arch
To build a .deb:
make pkg_debian