Siemens SCALANCE W1780 Configuration Manual page 176

Configuring with Web Based Management
6.5 "System" menu
Requirements for the DHCP server
● In access point mode
– The connected devices are configured so that they obtain the IPv4 address from a DHCP
● In client mode
– The connected devices are configured so that they obtain the IPv4 address from a DHCP
– NAT is enabled. You enable NAT in "Layer 3 > NAT".
Description
The page contains the following boxes:
● Enable DHCP Server
Enable or disable the DHCP server on the device.
Note
To avoid conflicts with IPv4 addresses, only one device may be configured as a DHCP
server in the network.
Note
Access point
The "DHCP Server" function is only possible on the VLAN assigned to the management
(agent VLAN ID).
● Probe address with ICMP echo before offer
When selected, the DHCP server checks whether or not the IP address has already been
assigned. To do this the DHCP server sends ICMP echo messages (ping) to the IPv4
address. If no reply is received, the DHCP server can assign the IPv4 address.
Note
If there are devices in your network on which the echo service is disabled as default, there
may be conflicts with the IPv4 addresses. To avoid this, assign these devices an IPv4
address outside the IPv4 address band.
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server.
server.
SCALANCE W1780/W1740 according to IEEE 802.11ac Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C485-03