[squid-users] Squid woes in transparent mode

Hi All:
 I can't seem to be able to get squid to run in transparent mode.
Squid runs fine at any port, say xxxx, with my browser configured to use
proxy pointing to squid using xxxx. When I place this Squid server
(running at port 80) behind a router which redirects all protocol
tcp port 80 to it (Squid) then Squid seems to ignore all
the HTTP requests. In the latter case the browser is configured
with no proxy.
 Using tcpdump, I was able to confirm HTTP request packets going to the
Squid server. I however, saw no HTTP packets initiated from the Squid
server. It's just like Squid never sees these packets, nothing in
access.log either.
 Can anyone advise me? Reconfiguring browsers to use proxy is not
an option for me. It must be transparent with no manual intervention
from users.
Thank you all.

--
Tu Nguyen
email: nguyen@ucalgary.ca