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4.8 Access Control Access Control allows you to assign the access right for each user. First, you must divide
users into different groups, as identified by their IP addresses. You can assign the members
of Group 1, 2 and 3. The others are all members of Default Group. Second, you must assign
the access right of each group. The access right can allow or block users to access specified
TCP and UDP ports. For example:
Group Members Access Right Comments
Default - Allow () No access right (allow nothing)
Group 1 100-199 Allow (25,53,80,110) Can browse(80), receive
(110)
and send(25) email only
Group 2 50-99 Block (21,119)
Cannot read net news(119) and
FTP(21) only
Group 3 1-9,20 Block () Fully access (block nothing)