Subject: why does tcp_v[46]_conn_request not inc MIB stats

From: Rick Jones <[email-masked]>
Date: Mon, 10 Sep 2007 11:42:18 -0700

I've been digging around to see about inducing /proc/net/tcp to show 
some "interesting" things for listen sockets (eg backlog depth, its max, 
and dropped connection requests).  While there I've noticed that both 
tcp_v[46]_syn_recv_sock and tcp_v[46]conn_request both check that the 
listen queue is full, but only tcp_v[46]_syn_recv_sock increments some 
mib stats for dropped connection requests.

Is that deliberate, or is that a hole in the stats?

rick jones