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NAT
4-29
addresses. In other words, depending on the requested service (TCP/UDP
port number), the Barricade redirects the external service request to the
appropriate server (located at another internal IP address.)
For example, if you set Type/Public Port to TCP/80 (HTTP or Web) and
the Private IP/Port to 192.168.2.2/80, then all HTTP requests from
outside users will be transferred to 192.168.2.2 on port 80. Therefore, by
just entering the IP Address provided by the ISP, Internet users can access
the service they need at the local address to which you redirect them.
The more common TCP service ports include:
HTTP: 80, FTP: 21, Telnet: 23, and POP3: 110.
Note:
The WAN interface should have a fixed IP address to best utilize
this function. If your ISP only provides dynamic IP addresses, a
search for “free dynamic IP” on any major search engine will turn
up tools that will allow you to use the same domain name even
though your IP address changes each time you log in to the ISP.
Summary of Contents for 7404BRA FRT
Page 2: ......
Page 7: ...COMPLIANCES vi ...
Page 11: ...TABLE OF CONTENTS iv ...
Page 25: ...CONFIGURING CLIENT PCS 3 2 ...
Page 62: ...FIREWALL 4 37 Access Control Add PC ...
Page 65: ...CONFIGURING THE BARRICADE 4 40 3 Click OK and then click APPLY to save your settings ...
Page 66: ...FIREWALL 4 41 Intrusion Detection ...
Page 75: ...CONFIGURING THE BARRICADE 4 50 Status ...
Page 83: ...CONFIGURING THE BARRICADE 4 58 ...
Page 107: ...CONFIGURING CLIENT TCP IP 5 24 ...
Page 115: ...CONFIGURE THE PRINT SERVER 6 8 ...
Page 119: ...TROUBLESHOOTING A 4 ...
Page 125: ...CABLES B 6 ...