Hi, I'm experimenting with 2 Squid 3.1.1 instances in reverse proxy mode. They are configured to be peers of each other using ICP. I'm not using digests. When a cached resource has not yet expired, each instance will successfully contact the other to retrieve the resource. However, when the resource is expired, no attempt is made to contact the peer. I'm trying to determine if that behavior can be changed. My question is, is there a way to configure Squid so that it will contact its peers when asked for an expired resource? I'm interested in doing this to reduce the number of requests that make their way to the backend servers. If a peer has a fresh copy, I'd like that one to be used instead of sending the request to the backend. I wasn't able to find a definitive answer to this question via the documentation, or searching the list. Thanks for your time, Paul