Specification
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Firewall configuration for internet access
As modem/routers differ enormously in their configuration, it is not possible for DSE to give a complete guide to
their use with the DSE8610. However it is possible to give a description of the requirements in generic terms. For
details of how to achieve the connection to your modem/router you are referred to the supplier of your
modem/router equipment.
The DSE8610 makes its data available over Modbus TCP and as such communicates over the Ethernet using a
Port configured via the DSE config suite software..
You must configure your modem/router to allow inbound traffic on this port. For more information you are referred
to your WAN interface device (modem/router) manufacturer.
It is also important to note that if the port assigned (setting from software “Modbus Port Number”) is already in use
on the LAN, the DSE8610 cannot be used and another port must be used .
Outgoing Firewall rule
As the DSE8610 makes its user interface available to standard web browsers, all communication uses the chosen
port. It is usual for a firewall to make the same port outgoing open for communication.
Incoming traffic (virtual server)
Network Address and Port Translation (NAPT) allows a single device, such as the modem/router gateway, to act
as an agent between the Internet (or "public external network") and a local (or "internal private") network. This
means that only a single, unique IP address is required to represent an entire group of computers.
For our DSE8610 application, this means that the WAN IP address of the modem/router is the IP address we need
to access the site from an external (internet) location.
When requests reaches the modem/router, we want this passed to a ‘virtual server’ for handling, in our case this is
the DSE8610 module.
Result : Traffic arriving from the WAN (internet) on port xxx is automatically sent to IP address set within the
configuration software on the LAN (DSE8610) for handling.
NOTE:- Refer to DSE8600 series Configuration Suite Manual (DSE part 057-119) for further details on
configuring, monitoring and control.
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