Siemens NK8237 MP4.81-01 Installation Manual page 49

Building Technologies
CPS Fire Safety
– If NAT (Network Address Translation) is used on the network, enable it and
enter the external IP address (NAT address) of the NK8237.
Configuring the routing table
1. Select the NK823x node.
2. In the Routing tab, click the Add button to add a new route.
3. Configure the following parameters:
– Applying the standard IP addressing concepts, enter Destination and
Netmask to define the destination range on an external subnet.
For example, destination 192.168.2.0 and netmask 255.255.255.0 defines
any address in the range 192.168.2.1 to 254. Instead, destination
192.168.2.10 and netmask 255.255.255.0 defines the single IP address
192.168.2.10.
– Enter the IP address of the Gateway, on the same subnet, which can
provide connectivity for the destination subnets.
– If multiple routes are available for the same destination, use the Metric field
to indicate the cost (for example, the number of devices along the network
path) of each route: the higher the number (cost), the lower the
corresponding priority.
4. Add as many routes as required by your network configuration.
5. Select the Routing between ETH1 and ETH2 check box (available when both
Ethernet ports are used) to enable a general routing across the two lines. Note
that:
Routing between ETH1 and ETH2 is not required for supporting the
communications across the two Ethernet lines, for example, between a
management station network on ETH1 and a subsystem network on ETH2.
Instead, the unit-controlled routing is required to enable the IP connectivity for
other units operating on the two separated subnets.
Configuration
Creating the NK8237 Gateway
A6V10854379_a_en
7
49
30.11.2017