/proc/net/dev 11.. LLiisstt ooff nneettwwoorrkk ddeevviicceess /proc/net/dev is a list of network devices available in the kernel. It does not show all possible network devices for a given computer, as some are allocated dynamically as needed (ppp devices), and others are controlled by loadable (often on demand) kernel modules. _L_i_n_u_x_c_o_n_f uses this file to probe the available network devices.