Hello, all - I'm running into some issues where I can't quite seem to get HTCP to work properly. I'm using 3.0STABLE5-2, with HTCP enabled at compile time, and although I have Squid set up properly working as a stand-alone reverse proxy cache, I cannot get one node to talk with another. So far as I understand, this should be the 'meat and potatoes' of what makes HTCP tick: cache_peer 239.4.8.12 multicast 80 4827 ttl=1 cache_peer 192.168.15.75 parent 80 4827 htcp no-query originserver name=localhost.localdomain cache_peer 192.168.15.85 neighbor 80 4827 htcp multicast-responder mcast_groups 239.4.8.12 - noting my multicast address as 239.4.8.12, with a negligible http port, making sure to use HTCP (implied with port 4827 as ICP port) with a TTL to live. - parent cache peer of 192.168.15.75, http port of 80, making sure to use HTCP (implied with port 4827 as ICP port), making this the final destination for queries - neighbor cache peer at 192.168.15.85 configured to participate in the multicast group and respond appropriately Now, those are my interpretations of the process. Of course I have a few other ACLs in there that also manage suqid in itself, but I'm not so sure they're directly related to this. I guess what my question is, is that I am having a bit of difficulty understanding which peer can be told to be the final destination for the request, i.e. that peer being the backend web server. Once I get that figured out, I believe that I can make all other peers neighbors (right?), which use that final destination to populate their cache. I hope I'm explaining this properly, I might be a bit off here. I suppose other than that, my first day using Squid has been a lot of fun! Thanks! -dant