Siemens SIMATIC NET CP 343-1 Manuel d'utilisateur télécharger pdf (Page 72)

9 Further Notes on Operation

B−72

CP 343-1 Advancedfor Industrial Ethernet / Manual Part B

Release 06/2008

C79000-G8976-C202-04

9.13 Attachment to Industrial Ethernet networks

Since the CP forwards frames from and to private and public IP addresses via its

two interfaces, you should not connect the CP to a public network.

9.14 Use of the CP as IP router

The CP can be used to forward IP messages from a local area network to a

higher−level network and vice versa. The CP then controls access permission

according to the configuration.

An extensive network with other IP subnets can then be connected to one of the

Ethernet interfaces. To achieve this, an external router can be configured on this

interface that handles forwarding to nodes that are not directly reachable. In this

case, enter the IP address of this router in “Default Router” for the appropriate

interface in HW Config.

Notice

The use of the CP as a universal router between two extended networks with

further subnets is not supported.

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Siemens SIMATIC NET CP 343-1 Manuel d'utilisateur Page 72