Address Assignment With The Primary Setup Tool - Siemens SIMATIC NET SCALANCE W760 Series Configuration Manual

● There is normally no fixed address assignment; in other words, when a client requests an
IP address again, it normally receives a different address from the previous address. It is
possible to configure the DHCP server so that the DHCP client always receives the same
fixed address in response to its request. The parameter with which the DHCP client is
identified for the fixed address assignment is set on the DHCP client. The address can be
assigned via the MAC address, the DHCP client ID or the system name. You configure
the parameter in "System > DHCP Client (Page 132)".
● The following DHCP options are supported:
– DHCP option 66: Assignment of a dynamic TFTP server name
– DHCP option 67: Assignment of a dynamic boot file name
– DHCP option 82: Assignment of IP addresses depending on the switch port or the
Note
DHCP uses a mechanism with which the IP address is assigned for only a short time
(lease time). If the device does not reach the DHCP server with a new request on expiry
of the lease time, the assigned IP address, the subnet mask and the gateway continue to
be used.
The device therefore remains accessible under the last assigned IP address even without
a DHCP server. This is not the standard behavior of office devices but is necessary for
problem-free operation of the plant.
4.4

Address assignment with the Primary Setup Tool

Introduction
The PST (Primary Setup Tool) is capable of assigning such an address to unconfigured
devices that do not yet have an IP address.
Requirement
The devices can be reached via Ethernet.
Note
For more detailed information, refer to the Primary Setup Tool configuration manual.
You will find the PST at Siemens Industry Automation and Drives Service & Support on the
Internet under entry ID 19440762. The URL for this entry is:
http://support.automation.siemens.com/WW/view/en/19440762
(http://support.automation.siemens.com/WW/view/en/19440762)
SCALANCE W760/W720 to IEEE 802.11n Web Based Management
Configuration Manual, 11/2014, C79000-G8976-C350-03
VLAN ID
4.4 Address assignment with the Primary Setup Tool
Assignment of an IP address
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