I do not have the answer. I'd like to know more though. What version / patch level are the NT machines. Does the "Window Load Balancing Software" come bundled, or is it a separate package (version?)? Where can more info be had on how it operates? Does it spoof IPs or MACs to get it's job done? Does IPTables have a problem with that? Mostly curious, but good luck! Troy >>> jhawley at bgea.org 11/26/01 09:00AM >>> Hi. I've a firewall running Netfilter/iptables 1.2.3-2 on Linux 2.4.13. Does anyone know of any issues / incompatabilities with Webservers running IISv5 on multiple NT machines with "Window Load Balancing Software"? The web sites run off their own IP's (about 30 of them) and some sites/ip's route through the firewall while others don't. However if they take one of the two "clustered" machines down, then everything appears to work correctly. Iptables rules treat all these website ip's the same. I know this is sketchy .. I was just wondering, generally, if there are any gotcha's with this setup that anyones heard of. (I'm thinking maybe something with the connection tracking and the webservers doing redirection between each other??) I couldn't find any mention of this problem in the Netfilter list archives, so I'm hoping its just a misconfiguration on the NT's. Thanks. -- John Hawley BGEA/ITS <=> Network Admin 612.335.1334 jhawley at bgea.org _______________________________________________ Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.mn-linux.org/mailman/listinfo/tclug-list