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7004VBR – Manual
24
6.2.4 | NAT
From this section, you can configure the Virtual Server and Special Application features that provide
control over the port openings in the router’s firewall. This section can be used to support several
Internet based applications such as VPN connections.
• Virtual Server
You can configure the Barricade as a virtual server. Remote users accessing services such as
the Web or FTP at your local site via public IP addresses can be automatically redirected to
local servers configured with private IP addresses. To provide the most flexibility, the
Barricade can support either a single port (80) or a range of ports (80-100). The traffic type
can also be defined as TCP, UDP, or both (UDP and TCP).
Some of the more common ports include: HTTP: 80, FTP: 21, Telnet: 23 and POP3: 110.