D-Link DI-713P User Manual page 44

Tip: You can specify more than one port per group by using dashes (-)
and commas (,). For example: 1-10, 20 will block or allow ports 1 through
10, and also 20.
Explanation:
Default Group has no right to access Internet (Allow nothing)
Group 1 has 50 members (192.168.0.100 - 192.168.0.149). They
can send mail (port 25), receive mail (port 110) and browse the
Internet (port 80). Port 53 (DNS) is necessary to resolve the
domain name.
Group 2 has 50 members (192.168.0.150 - 192.168.0.199). They
can do anything except read net news (port 119) and transfer files
via FTP (port 21).
Group 3 has 2 members (192.168.0.10 and 192.168.0.20). They
can fully access the Internet (Block nothing)
After the Access Control settings have been configured, click the Save
button. The following screen will be shown telling you that the changes
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