I just built a router and installed it with Ubuntu Server 14.04 LTS. The system has two NICs, one for the internal network and one for the external (p3p1
) network. I'd like to monitor external interface usage, but the ifconfig
counters are always at 0. ip -s link ls p3p1
shows zero for all counters as does cat /proc/net/dev
. The internal interface (em1
) counters work fine. According to lspci
, the external interface is a Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10).
Other than the counters, it works fine. How do I get the counters working on this device?