> i want to use squid in transparent mode > and getting error in ipfw while i enter > ipfw add 102 fwd 3128 tcp from any to any 80 > > ipfw: getsockopt(IP_FW_ADD): Invalid argument > > Is it necessary to recompile kernel ? > any suggestion ? Please check : http://www.squid-cache.org/Doc/FAQ/FAQ-17.html for your platform, thoroughly. M.