[squid-users] squid particular ACL authentication

Hi,

I was wondering if i can create two different or more ACLs; one of a
network range and can bypass squid authentication, while the other ACL
must be authenticated. Would that be possible?

I have squid3 on Ubuntu 8.10. I 've been reading some on-line
documents about squid ACL but can't really figure out how to achieve
that.

any help would be much appreciated.

-- 
Best Regards,
Dooda