Determines whether network access is permitted when satisfying a request.
For example;
to force your neighbors to use you as a sibling instead of
a parent.
acl localclients src 192.0.2.0/24 2001:DB8::a:0/64
miss_access deny !localclients
miss_access allow all
This means only your local clients are allowed to fetch relayed/MISS
replies from the network and all other clients can only fetch cached
objects (HITs).
The default for this setting allows all clients who passed the
http_access rules to relay via this proxy.
This clause only supports fast acl types.
See https://wiki.squid-cache.org/SquidFaq/SquidAcl for details.