- root:~> netstat -tupan | grep cups tcp 0 0 127.0.0.1:631 0.0.0.0:*
LISTEN 1330/cupsd tcp6 0 0 ::1:631 :::* LISTEN 1330/cupsd
Figured this one out too. Looks like by default cupsd was listening on the localhost only (127.0.0.1). Changed that in /etc/cups/cupsd.conf to
Listen *:631