If you use proxy authentication and the 'max_user_ip' ACL,
this directive controls how long Squid remembers the IP
addresses associated with each user. Use a small value
(e.g., 60 seconds) if your users might change addresses
quickly, as is the case with dialups. You might be safe
using a larger value (e.g., 2 hours) in a corporate LAN
environment with relatively static address assignments.
Can this be any kind of proxy_authentication?
So the following must be changed for the IP rule to have effect:
acl aclname max_user_ip [-s] number
authenticate_ip_ttl
