LevelOne WBR-6012 - Manual (Page 47)

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(1.2.3.100-1.2.3.149) Remote hosts are allow to send mail (port 25), and browse the Internet
(port 80)
(1.2.3.10-1.2.3.20) Remote hosts can do everything (block nothing)
Others are all blocked.
Example 2:
(1.2.3.100-1.2.3.119) Remote hosts can do everything except read net news (port 119) and
transfer files via FTP (port 21) behind Router Server.
Others are all allowed.
After Inbound Packet Filter setting is configured, click the save button.
Outbound Filter: