Ok, I've flogged this issue on the shorewall list probably longer than some of you can stand by now. (remember, I'm the nut trying to use a PPro200 to support ~500 users on a 10Mb internet link, and was experiencing random slow access/timeouts on first attempts to websites, but 2nd hits were fast. Problems can occur even during times of light load, and we have less than 25 rules in the firewall.) To appease those who think I'm nuts, I am ordering a new firewall shortly to allow for future growth. (probably a Dell PE750 with P4/2.8 and dual GE nics, although I'm open to suggestions on best choice of CPU, etc) However, since I have yet to prove that processor speed has anything to do with my random slow response times, I have this horrible nightmare that I will build a brand new 2.8Ghz firewall and *have the same problem*! (I have reproduced the problem on a PPro200 and a PII/233, but CPU use never exceeds 15% on either, and no sign of dropped packets. A P3/667 is currently running fine, and I am working on duplicating it's setup, including exact kernel config on the slower machines as a test.) So I won't bore you with any more details, but simply ask that anyone who is using iptables/shorewall on an aging CPU (say from 100-500 Mhz) supporting several hundred clients on a 10Mb link or faster, please let me know, on or off list. I just hate not knowing what is causing our problems, and having them occur on a new, fast firewall would probably push me over the edge.... Thanks. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Shawn Wright, I.T. Manager Shawnigan Lake School http://www.sls.bc.ca swright@xxxxxxxxx