Table 34: List Of Parameters Transmitted Via Dhcp; 750-8208 Pfc200 Cs 2Eth Rs Can Dpm - WAGO I/O SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750

750-8208 PFC200 CS 2ETH RS CAN DPM

The settings are made, for example, in the WBM via the "DHCP Configuration"
page.
The DHCP server also passes other parameters in addition to the IP address. The
following table shows the complete list.

Table 34: List of Parameters Transmitted via DHCP

Parameters
IP address
Subnet mask
Broadcast address
Lease time
Host name
Name server
Default gateway
Not all parameters can be set in the WBM. If you want to set other values for the
existing parameters or want to pass other parameters via DHCP, the DHCP server
must be manually configured. For the controller, the DHCP server service is
handled by the program "dnsmasq".
Manual
Version 1.1.0, valid from FW Version 02.06.20(09)
Explanation
An IP address from the range of permitted address; the
range can be configured in the WBM.
The DHCP server determines the IP address to be passed to
the requesting network subscriber (client) from the MAC
address of the network subscriber and the range of addresses
to be assigned. As long as the configured address range does
not change and no bottlenecks occur when assigning IP
addresses, the DHCP server continuously reassigns the same
IP addresses to requesting network subscribers.
When a subscriber connects to the network, for whose MAC
address a fixed IP address has been configured in the WBM,
this address is passed to it. Such a fixed IP address can also
be outside the range of freely-assignable IP addresses.
A hostname can also be specified instead of the MAC
address for identifying the requesting network subscriber.
The subnet mask configured in the network settings of the
DHCP server for the local network concerned is passed.
The subnet mask and IP address determine the range of
valid IP addresses on the local network.
IP address with which an IP packet can be sent to all
network subscribers on the subnet at the same time
Determines the validity period of the DHCP parameters
passed to a network subscriber:
Per protocol, the network subscriber is required to request
the network settings again after half the period of validity.
The lease time is configured in the WBM.
The network name is passed to the network subscriber.
The network subscriber normally sends its own name with
its request for the IP address. It is then used by the DHCP
server in its response.
The DHCP server passes its own IP address as the DNS
name server to the network subscriber.
The DHCP server passes its own IP address as the default
gateway to the network subscriber.
The default gateway is required to communication with
subscribers outside the local network.
Function Description 63