Lantronix X300 Series X300 Series User Guide Rev B - Page 131
Network, X300 Series IoT Cellular Gateway User Guide, DHCP > General Setup
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11: Network Parameters Description Override MTU Enter the number of bytes indicating the largest physical packet size that the network can transmit. The default MTU size is 1500 bytes. Blank value represents auto MTU size Use gateway metric Enter the gateway metric. It ensures a separate routing entry for the respective interface in the main routing table. The default metric is 5. Physical Settings Bridge Interfaces Click to enable creating a bridge over multiple interfaces. Enable STP - Check to enable the Spanning Tree Protocol over the bridge. Enable IGMP snooping - Check to enable IGMP snooping on the bridge. Interface Select the interface to be configured. Select more than one interface, if parameter creating a bridge over multiple interfaces is enabled. Firewall Settings Create/Assign firewall -zone Select the firewall zone to be assigned to the interface. Select unspecified - or - create to remove the interface or assign a new zone to the interface respectively. Enter the name of the new zone in the text box and click Save & Apply button. DHCP > General Setup DHCP Server - DHCP Server is used only for LAN interfaces Ignore Interface Check to disable the DHCP interface. Note: If DHCP server is disabled for the interface, all the LAN devices connected to the gateway should have a static LAN IP configured. Start Lowest leased address as offset from the network address. Note: If your LAN IP address is 192.168.1.1 and the parameter Start is configured as 100, then the starting IP Address of the leased IP Address range is 192.168.1.100 Limit Maximum number of leased addresses that can be configured. Example If your LAN IP Address is 192.168.1.1, the parameter Start is configured as 100, and parameter Limit is configured as 150, then a total of 150 devices are configured. Thus the leased IP Address range is 192.168.1.100 to 192.168.1.249. Lease time Remaining time until the device can use the DHCP server leased IP Address. Note: IP address allocated by the gateway will disappear from the WiFi / Overview / Associated stations list only after individual lease time for each IP expires. DHCP > Advanced Settings Dynamic DHCP Check to allocate DHCP IP addresses dynamically to the clients. When unchecked, service will be provided only to the clients having the static IP Address. X300 Series IoT Cellular Gateway User Guide 131