I am ISP and recently switched to Mikrotik, my previous router was a Cisco 3600 working along to a cache server which did the cache and bandwith control. Can Mikrotik work along with my cache server just performing the cache process only?
sure, as long as you know how to set it.
Transparent-proxy should help you to redirect users HTTP requests to router proxy, then enabled ‘parent-proxy’ option will redirect requests to the upper cache-server. ‘ip proxy direct’ list to specify, which request to resolve via upper-proxy and which directly connecting to the server.