Seneca S6001-RTU, Руководство пользователя

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USER MANUAL – Z-TWS4/Z-PASS2-S/S6001-RTU
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In this example, 2 rules have been set:

the first rule tells the Device that any TCP packet received on the 80 (HTTP) port has to be
forwarded to the 8080 port, leaving the original destination IP address unchanged; so, this rule lets
you access the Device configuration web site on the standard HTTP port; however, by doing this,
the access to the custom user’s pages won’t be possible anymore !

the second rule tells the Device that any TCP or UDP packet received on the 502 port (which is
often used for Modbus TCP protocol) shall be forwarded to the 192.168.85.103 IP address (which
corresponds to another device) on the same (502) destination port.
Another important aspect of “Port Mapping / Virtual Server” rules is that they let define which ports are
open in the “Mobile Network Firewall”; for example, if you want to connect to the web configuration site