Transparent proxy broken in 2.1.54

Chris Evans (
Thu, 11 Sep 1997 11:27:50 +0100 (BST)


Subject says it all really. I'm using a simple rule to redirect traffic
aimed at port 80, to port 8080 (nice way to avoid having to run a web
server as root).

The rule is something like (can't remember exactly)

ipfwadm -I -a accept -P tcp -D localhost 80 -r 8080

Under 2.0.31pre9, things work as expected, but under 2.1.54, traffic sent
to port 80 gets no reply, and netstat shows sockets hanging around in the
"SYN_RECV" state.