I've tried following the FAQ recipe for interception caching with Cisco
equipment (http://www.squid-cache.org/Doc/FAQ/FAQ-17.html, section
17.5). Petulantly, it doesn't seem to work.

I've applied the access-list and route-map as described, changing the
the proxy address appropriately. However, the counters for policy
routing matches suspiciously show zero.

The versions are squid 2.5.-STABLE 11 and IOS 12.2(25). Would anyone be
able to give me some pointers as to how they were able to get a similar
scenario operational?

Many thanks in advance,