On 21/08/2014 7:16 p.m., k simon wrote: > Hi,Lists, > > I plan to use "acl isp-xxx dst" to define tons of route prefix over > 27,000 items. Does it reasonable? Squid should be able to handle it, but its probably best to aggregate the ranges first to minimize the work necessary per-request. Squid takes start-end/mask syntax which can range across odd numbers of CIDR boundaries. So a clean CIDR prefix listing has potentially far more entries than strictly necessary for Squid config files. Amos