Lantronix X300 Series X300 Series User Guide Rev B - Page 129

11: Network Interface Protocols The protocol assigned to each interface defines rules for exchanging information on the interface. Table 11-3 shows the available protocol options for each of the interfaces. When configuring an interface, please make sure that the protocol selection is appropriate for the interface. Legend:  = protocol can be assigned  = protocol should not be assigned Table 11-3 Network Interface Protocols Interface LAN WWAN Cellular Protocols Static Address    DHCP client    DHCPv6 client    GRE    L2TP    Unmanaged    PPP    PPPoE    PPtP     UMTS/GPRS/EV-DO   QMI Cellular    Relay Bridge    The interface configuration involves selection or configuration of other settings such as default gateway, gateway metric, DHCP server, and firewall zone to name a few. These settings may or may not be used by the interface; the interface configuration depends on both the protocol selected as well as the network requirements. For descriptions of the protocols used with the LAN, WWAN, and Cellular interfaces, see the next section, Protocol Descriptions. Most of the other protocols listed in Table 11-3 are used for VPN configuration. For example, use L2TP protocol to configure an L2TP VPN connection. For descriptions on these protocols, see Add Virtual Interface. The interfaces can be set to Unmanaged, if no protocol is desired. This setting may be used to enumerate an interface for firewall purposes. X300 Series IoT Cellular Gateway User Guide 129