DHCP server operating mode in this network. Depending on the operating mode, the DHCP server can enable/disable itself. The DHCP statistics show whether the DHCP server is enabled.
SNMP ID: 2.10.20.11
Telnet path: Setup/DHCP/Network-list
Possible values:
- No: DHCP server is permanently switched off.
- Yes: DHCP server is permanently switched on. When this value is entered the server configuration (validity of the address pool) is checked. If the configuration is correct then the device starts operating as a DHCP server in the network. Errors in the configuration (e.g. invalid pool limits) will cause the DHCP server to be deactivated. Only use this setting if you are certain that no other DHCP server is active in the LAN.
- Automatic: With this setting, the device regularly searches the local network for other DHCP servers. The LAN-Rx/Tx LED flashes briefly when this search is in progress. If another DHCP server is discovered the device switches its own DHCP server off. If the LANCOM is not configured with an IP address, then it switches into DHCP client mode and queries the LAN DHCP server for an IP address. This prevents unconfigured devices introduced to the network from assigning addresses unintentionally. If no other DHCP server is discovered the device switches its own DHCP server on. If another DHCP server is activated later, then the DHCP server in the device will be disabled.
- 'Relay requests': The DHCP server is active and receives requests from DHCP clients in the LAN. The device does not respond to requests, but forwards them to a central DHCP server elsewhere in the network (DHCP relay agent mode).
- 'Client-Mode': The DHCP server is disabled, the device behaves as a DHCP client and obtains its address from another DHCP server in the LAN. Only use this setting if you are certain that another DHCP server is in the LAN and actively assigning IP addresses.
Default: No
Note: Only use the setting "Yes" if you are certain that no other DHCP server is active in the LAN. Only use the "client mode" setting if you are certain that another DHCP server is in the LAN and actively assigning IP addresses.