S&C Instruction Sheet 461-509 27
Ethernet 2 (WAN)
This panel denes the IP addressing for the communications gateway’s Ethernet Port 2
and subsequent network linkage and settings respective to the customer’s legacy back-
haul WAN network. See Figure 17.
Note: The use of these elds is for WANs that use Ethernet as a back-haul transport
protocol. When serial is used for the back haul network, or there is no WAN, this panel
will not require entries.
Figure 17. The Ethernet 2 (WAN) fields.
DHCP State ‘Off’
Three elds require identication: Static IP Address, Default Gateway IP Address,
and NetMask. The Static IP Address eld is the WAN IP address assigned to the commu-
nications gateway. The Default Gateway IP Address eld is the address of the network
device “up-stream” of the communications gateway and determines the destination of
DNP3 trafc sent to the SCADA masters(s).
Conguring the Communications Gateway